[go: up one dir, main page]

WO2017118271A1 - Module optique d'émission et de réception en parallèle pour transmission en liaison double, et procédé de préparation - Google Patents

Module optique d'émission et de réception en parallèle pour transmission en liaison double, et procédé de préparation Download PDF

Info

Publication number
WO2017118271A1
WO2017118271A1 PCT/CN2016/110355 CN2016110355W WO2017118271A1 WO 2017118271 A1 WO2017118271 A1 WO 2017118271A1 CN 2016110355 W CN2016110355 W CN 2016110355W WO 2017118271 A1 WO2017118271 A1 WO 2017118271A1
Authority
WO
WIPO (PCT)
Prior art keywords
parallel light
optical
collimator
pin
lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/110355
Other languages
English (en)
Chinese (zh)
Inventor
胡百泉
付永安
刘成刚
陈伟
赵丹
郑盼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Telecommunication Devices Co Ltd
Original Assignee
Wuhan Telecommunication Devices Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Telecommunication Devices Co Ltd filed Critical Wuhan Telecommunication Devices Co Ltd
Publication of WO2017118271A1 publication Critical patent/WO2017118271A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends

Definitions

  • the present invention belongs to the field of optical communication technologies, and in particular, to a parallel receiving and emitting module for dual-link transmission and a manufacturing method thereof.
  • Today's high-speed optical devices and optical modules for parallel transmission are for a certain application site, or an application link layer, such as the patent CN201210184192. 7, CN201310751180.2, US20120189314A1, etc., for long-distance single-mode link transmission; such as patent CN201410700394.1, CN201310164198.2, etc., for short-distance multi-mode link transmission.
  • long-distance single-mode links such as 10Km links
  • its link characteristics are that the fiber transmission mode is the fundamental mode (there is a small number of polarization modes), the mode is stable, and the power is stable and smaller with increasing distance.
  • short-distance multi-mode links such as 300m OM3 multimode links, which are used at 850nm
  • multi-mode fiber and 850nm VCSEL laser mode are matched and coupled. The efficiency is high and the cost is low, but the disadvantage is that the mode is unstable, and the mode dispersion is severe, which is related to the way of laser injection, and the jitter of the optical fiber causes the optical power to jump.
  • the optical components of the link and its transmitting and receiving terminals are interconnected by connectors, such as flanges, LC standard card slots, MPO heads, etc. These connectors are optical interfaces and links of optical devices through precise mechanical positioning.
  • the jumpers are docked.
  • the optical port of the optical device usually has a SC-type pin, a plug-in LC type pin, a pigtail type pin, and the like.
  • the ceramic ferrule is included, and the ceramic ferrule is equipped with an optical fiber. From the length of the fiber, the fiber in the plug-in type optical port usually does not exceed 10 mm.
  • the link whether it is a single-mode link or a multi-mode link, its fiber length is at least one hundred meters.
  • the fiber of the link is long enough to form a relatively stable transverse mode.
  • the second is the multi-mode link to the single-mode link.
  • the third case is that the multimode pin is transmitted to the single mode link;
  • the fourth case is that the multimode link is transmitted to the single mode pin;
  • the fifth case is that the single mode pin is transmitted to the multimode link;
  • Six cases are single mode links Transfer to multimode pins.
  • the problem is mainly the pattern mismatch, and the pattern mismatch causes at least two effects: introducing insertion loss, mode transition.
  • the second case it is mainly to introduce power loss.
  • the third case since the single-mode link length is sufficient and the mode field is stable, there is no mode problem, mainly introducing power loss.
  • the fourth case the mode within the single mode pin is unstable due to the mode mismatch.
  • the fiber length of the multimode link is sufficient, the spot emitted by the fiber substantially maintains the characteristics of the multimode fiber, and no special treatment is required.
  • the mode field in the multimode pin is unstable due to the mode mismatch.
  • An object of the present invention is to provide a parallel light-receiving module and a manufacturing method for dual-link transmission, so as to solve the problem that no parallel light-receiving module can be compatible with multi-mode fiber and single-mode fiber transmission in the prior art. problem.
  • an embodiment of the present invention provides a parallel receiving and emitting module for dual-link transmission, where the parallel receiving and emitting module includes a transmitting optical device, a receiving optical device, and a PCB circuit.
  • Board and data interface specific:
  • the light emitting device is composed of a first pin collimator and a first tube assembly;
  • the first pin collimator includes a first fiber optic interface, a single mode pin and a first collimating lens, and the three are in turn Coupling and being fixed on the first pin collimator;
  • the first package assembly includes a wavelength division multiplexing component, a coupling lens group and a laser chip set, the three are sequentially coupled and fixed on the package assembly ;
  • the receiving optical device is composed of a second pin collimator and a second tube assembly;
  • the second pin collimator includes a second fiber optic interface, a multimode pin and a second collimating lens, the three in sequence Coupling and being fixed on the second pin collimator;
  • the second package assembly includes a wave decomposition multiplexing component, an array lens and a detector chip set, the three are sequentially coupled and fixed on the package assembly ;
  • the emitting optical device and the receiving optical device are connected to the first data I/O port of the PCB circuit board,
  • the data interface is connected to the second data I/O port of the PCB circuit board.
  • the wavelength division multiplexing/demultiplexing component comprises a total reflection sheet, a glass bracket and a band pass filter set, wherein the total reflection sheet covers a working surface of the glass holder, and the surface is left on the working surface. / Light exit port, the band pass filter set covers the other working surface of the glass stand for transmitting light of a specified wavelength band.
  • the first package assembly further includes an optical path turning element fixed between the first collimating lens and the wavelength division multiplexing component, and a turning angle thereof according to the wavelength division multiplexing component The angle between the receiving light plane and the laser light path is determined.
  • the second package assembly further includes an aperture between the second collimating lens and the wave decomposition multiplexing component, a center point thereof and a central axis of the second collimating lens
  • the light entrances of the wave demultiplexing components are on the same line.
  • the first collimating lens and the second collimating lens specifically include: c-lens, G-lens, D-lens or an aspherical lens.
  • the embodiment of the present invention further provides a method for fabricating a parallel light-emitting module for dual-link transmission, which is assembled according to the parallel light-receiving module described in the first aspect and its preferred solution, wherein
  • the process of assembling the first collimating lens and the coupling lens group further includes:
  • Assembling the laser and the coupling lens group specifically: connecting the single mode jumper and the multimode jumper at the first fiber interface, and axially adjusting the first channel coupling lens, so that the first channel laser chip is output through the single mode jumper.
  • the optical power P satisfies: A*Ps1 ⁇ P ⁇ A*Pm1; the optical power P outputted by the first channel laser chip through the multimode jumper satisfies: A*Ps1 ⁇ P ⁇ A*Pm1; wherein A is a proportional coefficient, 0 ⁇ A ⁇ 1; the adjustment of the n channel coupling lenses is completed in sequence; the coupling assembly of the emitting optical device is completed.
  • the selection of the pupil in the receiving optical device is specifically:
  • the second pin collimator combined with the second collimator and the multi-mode pin has an output spot diameter D1 at a position of 30 ⁇ 5 mm, and the effective aperture of each filter in the wave demultiplexing module is D2, and D1 is located at [ Within the range of 0.5*D2-0.7*D2];
  • the second pin collimator Confirming that the second pin collimator is connected to the single mode jumper, and at this time, the second pin collimator has an output spot diameter D4 at a position of 30 ⁇ 5 mm, wherein D4 is greater than D1;
  • the diaphragm of the appropriate material is selected, and the effective aperture diameter D5 of the design aperture is satisfied: D1 ⁇ D5 ⁇ D4 and D1 ⁇ D5 ⁇ D3.
  • each component point is marked in the subsequently produced emitting optical device and the receiving optical device for mass production and assembly.
  • an embodiment of the present invention further provides a method for using a parallel light-receiving module, the method applying the parallel light-receiving module according to the first aspect and the preferred embodiment thereof, including a first parallel light-emitting module and The second parallel receiving light module, specifically:
  • the first receiving optical device of the first parallel light receiving module is connected to the second light emitting device of the second parallel light receiving module through a single mode fiber;
  • the second receiving optical device of the second parallel light receiving module is connected to the first light emitting device of the first parallel light receiving module through a single mode fiber.
  • an embodiment of the present invention further provides a method for using a parallel light-receiving module, the method applying the parallel light-receiving module according to the first aspect and the preferred embodiment thereof, including a first parallel light-emitting module and The second parallel receiving light module, specifically:
  • the first receiving optical device of the first parallel light receiving module is connected to the second light emitting device of the second parallel light receiving module through the multimode optical fiber;
  • the second receiving optical device of the second parallel light receiving module is connected to the first emitting optical device of the first parallel light receiving module through the multimode optical fiber.
  • the present invention proposes a parallel light-receiving module that can be used for dual links and an interconnection manner thereof, for dual-link Conventional single-mode long-distance transmission, without conversion, can be directly connected to single-mode fiber for short-distance multimode links.
  • the built-in optical device adopts a conventional wavelength division multiplexing structure, the transmitting optical device adopts a single-mode pin collimator, and the receiving optical device adopts a multi-mode pin collimator; the same optical module can be realized with a single mode at a long distance.
  • the ability to transmit optical fibers and short-distance multimode optical fibers is characterized by low cost, batch size, and miniaturization.
  • FIG. 1 is a schematic structural diagram of a parallel receiving and receiving module for dual link transmission according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a light emitting device used in a parallel light receiving module according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a receiving optical device used in a parallel light receiving module according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a wavelength division multiplexing/demultiplexing component used in a parallel light receiving module according to an embodiment of the present invention
  • FIG. 5 is a flowchart of completing lens coupling in a parallel light-receiving module for dual-link transmission according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a connection structure for dual link transmission according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an optical path of a light emitting device in a parallel light receiving module according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an optical path of a receiving optical device in a parallel light receiving module according to an embodiment of the present invention.
  • FIG. 1 is a parallel light-receiving module for dual-link transmission according to the present invention.
  • the parallel light-emitting module includes a light-emitting device 103, a receiving optical device 104, a PCB circuit board 102, and a data interface. (not shown in the figure), specific:
  • the light emitting device is constituted by a first pin collimator 201 and a first package assembly 202;
  • the first pin collimator 201 includes a first fiber optic interface 401, a single mode pin 402 and a first collimating lens 403, which are sequentially coupled and fixed to the first pin collimator 201;
  • the first package assembly 202 includes a wavelength division multiplexing component 405, a coupling lens group 406, and a laser chipset 407, which in turn is coupled and fixed to the package assembly 202;
  • the receiving optical device is constituted by a second pin collimator 204 and a second package assembly 205;
  • the second pin collimator 204 includes a second fiber optic interface 501, a multimode pin 502 and a second collimating lens 503, which are sequentially coupled and fixed to the second pin collimator 204;
  • the shell assembly 205 includes a wave decomposition multiplexing component 504, an array lens 505, and a detector chipset 506, which are sequentially coupled and fixed to the package assembly;
  • the transmitting optical device 103 and the receiving optical device 104 are connected to a first data I/O port (not shown) of the PCB circuit board 102, and the data interface is connected to the second data I of the PCB circuit board 102. /O port (not shown).
  • the embodiments of the present invention propose a parallel receiving and receiving module that can be used for dual links.
  • the built-in optical device adopts a conventional wavelength division multiplexing structure, the transmitting optical device adopts a single-mode pin collimator, and the receiving optical device adopts a multi-mode pin collimator; the same optical module can be realized with a single mode at a long distance.
  • the ability to transmit optical fibers and short-distance multimode optical fibers is characterized by low cost, batch size, and miniaturization.
  • the wavelength division multiplexing/demultiplexing component has an implementation manner, as shown in FIG. 4, specifically, a total reflection sheet 601, a glass bracket 602, and a band pass filter group 603, wherein The total reflection sheet 601 covers the working surface 604 of the glass holder 602, and has an inlet/exit port 605 on the working surface.
  • the band pass filter group 603 covers the other working surface 606 of the glass holder for transmitting the specified wavelength band.
  • Light In Fig. 4, a schematic diagram of a structure including four sub-filters is given, and a filter optical path effect is schematically shown.
  • the first package assembly 202 further includes an optical path turning element 404, the optical path turning element 404 being fixed to the first collimating lens 403 and wave Between the sub-multiplexing components 405, the turning angle is determined according to the angle between the optical plane (i.e., the surface of the band pass filter group 603) received by the wavelength division multiplexing component 405 and the optical path of the laser 407.
  • the optical plane i.e., the surface of the band pass filter group 603
  • the second package assembly 205 further includes an aperture 509, and the aperture 509 is located at the second collimating lens 503 and the wave decomposition multiplexing component 504.
  • the center point of the aperture 509 is on the same line as the central axis of the second collimating lens and the light entrance of the demultiplexing multiplexer.
  • the first collimating lens and the second collimating lens specifically include: c-lens, G-lens, D-lens or an aspherical lens.
  • the embodiment of the present invention further provides a method for manufacturing a parallel light-emitting module for dual-link transmission, which is assembled according to the parallel light-receiving module according to the first embodiment, wherein, as shown in FIG.
  • the process of a collimating lens 403 and a coupling lens group 406 further includes:
  • the first collimating lens 403 is customized such that the difference between the multimode coupled optical power and the single mode coupled optical power of the respective channels at the output port of the laser assembly 407 is within a preset coupling tolerance range.
  • the tolerance range can refer to the industrial parameter specifications of each device, and will not be repeated here.
  • step 202 the average value of the maximum coupled optical power coupled between the laser of each channel and the single mode collimator 402 is tested and counted, and is denoted as Ps1, Ps2, ..., Psn, where n is the number of lasers; test and statistics
  • Pm1, Pm2, ..., Pmn The average value of the maximum coupled optical power coupled to each channel and the multimode collimator is obtained, denoted as Pm1, Pm2, ..., Pmn.
  • step 203 the laser and the coupling lens group are assembled. Specifically, a single mode jumper and a multimode jumper are respectively connected at the first fiber interface 401, and the first channel coupling lens is axially adjusted, so that the first channel laser chip passes.
  • the optical power P of the single-mode jumper output satisfies: A*Ps1 ⁇ P ⁇ A*Pm1; the optical power P output by the first-channel laser chip through the multi-mode jumper satisfies: A*Ps1 ⁇ P ⁇ A*Pm1; , A is the proportional coefficient, 0 ⁇ A ⁇ 1;
  • the multimode jumper is connected at the optical port of the light emitting device and the multimode jumper is wound 3-10 turns, the fiber diameter is 15-30 mm (to weaken the interference of the high order mode), and then coupled to Taking the first channel as an example, the first channel collimating coupling lens is axially adjusted, so that the optical power P output by the first channel laser chip through the multimode jumper satisfies: A*Ps1 ⁇ P ⁇ A*Pm1, and A is a proportional coefficient. 0 ⁇ A ⁇ 1, depending on different power requirements.
  • step 204 the adjustment of the n channel coupling lenses is completed in sequence; the coupling assembly of the emitting optical device is completed.
  • the end face of the single mode pin 402 is located near the focus of the collimator lens 403, so the pin collimator 201 can output parallel light, and can also receive parallel light with high efficiency.
  • the laser chip 407 is located near the focus of the coupling lens group 406, and thus the light wave emitted from the laser chip 407 passes through the coupling lens 406 to form parallel light.
  • the dual lens coupling method of the collimating lens 403 and the coupling lens group 406 selects a suitable lens combination to achieve high coupling efficiency.
  • the collimating lens adopts a lens with a small numerical aperture, and the parallel light formed by the laser chip 407 after passing through the lens group 406 can be received by the collimating lens 403. Less than or equal to the numerical aperture angle of the pin 402 to achieve large coupling efficiency. Since the numerical aperture angle of the multimode fiber is larger than the numerical aperture angle of the single mode fiber, the lens applied to the single mode pin collimator is also suitable for multimode fiber transmission. Thereby, the compatibility of the emitting optical device for the single mode fiber patch cord and the multimode fiber patch cord is achieved.
  • the embodiment of the present invention provides a scalable solution, wherein the selection of the aperture in the receiving optical device is specifically:
  • the second pin collimator combined with the second collimator and the multi-mode pin has an output spot diameter D1 at a position of 30 ⁇ 5 mm, and the effective aperture of each filter in the wave demultiplexing module is D2, and D1 is located at [ Within the range of 0.5*D2-0.7*D2];
  • the second pin collimator Confirming that the second pin collimator is connected to the single mode jumper, and at this time, the second pin collimator has an output spot diameter D4 at a position of 30 ⁇ 5 mm, wherein D4 is greater than D1;
  • the diaphragm of the appropriate material is selected, and the effective aperture diameter D5 of the design aperture is satisfied: D1 ⁇ D5 ⁇ D4 and D1 ⁇ D5 ⁇ D3.
  • the expansion scheme utilizes a short multimode pin at the same time, and the parallel light output by the pin collimator at the optical port of the device can effectively reduce the spot change caused by the instability of the module when the single mode link is transmitted to the multimode pin. .
  • the focus of the embodiments of the present invention is to provide a method for setting each component in the parallel light receiving module, including: a first collimating lens 403, a coupling lens group 406, a laser 407, a second collimating lens group 503, and an array lens. 505 and detector chip 506 and so on.
  • the embodiment of the present invention further provides an alternative, that is, according to the position of each component completed by the coupling, and the subsequent generation of the light emitting device and the receiving optical device according to the position. The points of each component are marked for mass production and assembly.
  • the embodiment of the present invention provides a method for using a parallel light-receiving module.
  • the method includes the parallel light-receiving module according to the first embodiment, and includes a first parallel light-emitting module and a second parallel light-emitting module.
  • the first receiving optical device of the first parallel light receiving module is connected to the second light emitting device of the second parallel light receiving module through a single mode fiber;
  • the second receiving optical device of the second parallel light receiving module is connected to the first light emitting device of the first parallel light receiving module through a single mode fiber.
  • Embodiments of the present invention provide a method for using a parallel light receiving module, and the method is applied and implemented.
  • the parallel light receiving module of the first embodiment includes a first parallel light receiving module and a second parallel light receiving module, specifically:
  • the first receiving optical device of the first parallel light receiving module is connected to the second light emitting device of the second parallel light receiving module through the multimode optical fiber;
  • the second receiving optical device of the second parallel light receiving module is connected to the first emitting optical device of the first parallel light receiving module through the multimode optical fiber.
  • the embodiment of the present invention is further described by taking a device composed of a four-channel laser component and a four-channel detector component for CWDM, wherein the working wavelength adopts four common wavelengths of CWDM: ⁇ 1 , ⁇ 2 , ⁇ 3 , and ⁇ . 4 , such as 1271nm, 1291nm, 1311nm and 1331nm.
  • the optical module can be in the form of QSFP+IR4, QSFP+LM4, QSFP+LR4, QSFP28, PSM4, CFP2, CFP4, etc.
  • the QSFP+LR4 package form is taken as an example for description.
  • the optical module includes a housing 101, a PCB board 102, an emitting optical device 103, and a receiving optical device 104.
  • the light emitting device 103 includes a pin collimator 201, a package assembly 202, and a flexible tape 409.
  • the receiving optical device 104 includes a pin collimator 204, a package assembly 205, and a flexible tape 508.
  • the light emitting device 103 and the receiving optical device 104 are connected to the PCB 102 via a flexible tape 203 and a flexible tape 508, respectively.
  • the light-emitting device 103 and the light-receiving device 104 may be hermetically sealed or may be non-hero-sealed.
  • the optical port of the light emitting device 103 adopts a pluggable pin collimator 201, and the pin collimator 201 and the tube and shell assembly 202 are fixed by laser welding, and the connection manner of the tube and shell assembly 202 and the flexible tape 203 is different according to the tube case.
  • the package is different.
  • the flexible tape 203 is located outside the package assembly 202 and is cured by soldering.
  • one end of the flexible tape 203 is embedded in the inside of the package assembly 202, and is soldered or has a good sealing effect. Heat curing adhesive is fixed.
  • the optical port of the receiving optical device 104 is a pluggable pin collimator 204, the pin collimator 204 is fixed to the package assembly 205 by laser welding, and the package assembly 205 and the flexible tape 508
  • the connection manner varies according to different packages of the package.
  • the flexible tape 508 is located outside the package assembly 205 and is cured by soldering.
  • one end of the flexible tape 508 is embedded in the inside of the package assembly 205, and is soldered. Or a thermosetting adhesive with a good sealing effect.
  • connection modes of the optical module and the optical module are different, and the link components are different.
  • the link components are different.
  • there are various options for connecting the optical module to the optical module An application example is described below.
  • Example 1 The link between the optical module and the optical module is only the transmission fiber, and there is no switching component.
  • the two optical modules that communicate with each other are connected: whether for a long-distance single-mode link or a short-distance multimode fiber link, the optical modules are directly connected through the transmission fiber.
  • the main components of the optical path include: receiving optical devices 301, 304, transmitting optical devices 302, 303, and transmitting optical fibers 305, 306, wherein the transmitting optical device 303 is in communication with the receiving optical device 301, and the transmitting optical device 302 is in communication with the receiving optical device 304.
  • the transmission fibers 305 and 306 may be long-distance single-mode fibers or switched to short-distance multimode fibers.
  • optical modules can be compatible with both multimode fibers and single-mode fibers, in practical applications, Only the transmission fiber can be switched according to different applications. For example, a metropolitan area network can use long-distance single-mode fiber links, and a data center uses short-distance multimode fiber links. Both applications can use the same optical module.
  • the characteristics of the single-mode link and the multi-mode link are adopted, and the light-emitting device in the optical module adopts a single-mode pin at the optical port, and the structure of the double-lens parallel optical path is adopted inside the light-emitting device to realize the optical device.
  • High coupling efficiency to reduce the difference in optical power caused by the interchange of single-mode fiber and multi-mode fiber, and to adopt the necessary coupling measures (the method is described in the second embodiment, not repeated here), reducing single mode
  • the parallel light output from the pin collimator at the optical port of the device can effectively reduce the instability of the module when the single mode link is transmitted to the multimode pin. Changes from the spot. Therefore, the optical device and the optical module can be simultaneously applied to a single mode link and a multimode link.
  • Corresponding transmitting optical devices 302, 303 whose internal structure is distributed as shown in FIG. 4, in order, are LC optical port 401, single mode pin 402, collimating lens 403, optical path turning element 404, wavelength division multiplexing component 405. Coupling lens group 406, laser chip set 407, package 408, and flexible tape 409.
  • the LC optical port 401, the single mode pin 402, and the collimating lens 403 are assembled into a single mode pin collimator 201; the optical path turning element 404, the wavelength division multiplexing component 405, the coupling lens group 406, the laser chip set 407, and the package
  • the 408 is assembled into a package assembly 202.
  • the collimating lens 403 includes but is not limited to: c-lens, G-lens, D-lens, and Aspherical lens.
  • the wavelength division multiplexing component 405 may be a combination of a plurality of filters, a combination of polarization combining elements, or a combination of a polarization combining element and a filter.
  • the single-mode pin collimator 201 can have a built-in isolator. The reason why the single-mode pin is used can ensure the high coupling efficiency of the laser on the one hand, and facilitate the transmission of the optical signal on the long-distance single-mode link on the other hand.
  • the end face of the single mode pin 402 is located near the focus of the collimator lens 403, so the pin collimator 201 can output parallel light, and can also receive parallel light with high efficiency.
  • the laser chip 407 is located near the focus of the coupling lens group 406, and thus the light wave emitted from the laser chip 407 passes through the coupling lens 406 to form parallel light.
  • the dual lens coupling method of the collimating lens 403 and the coupling lens group 406 selects a suitable lens combination to achieve high coupling efficiency.
  • the collimating lens adopts a lens with a small numerical aperture, and the parallel light formed by the laser chip 407 after passing through the lens group 406 can be received by the collimating lens 403. Less than or equal to the numerical aperture angle of the pin 402 to achieve large coupling efficiency. Since the numerical aperture angle of the multimode fiber is larger than the numerical aperture angle of the single mode fiber, the lens applied to the single mode pin collimator is also suitable for multimode fiber transmission.
  • the laser chipset 407 is placed adjacent to the flexible tape 409 for electrical interconnection.
  • the left side of the laser chipset 407 is mounted with a coupling lens group 406, and the laser chip 407 is located near the focus of the coupling lens group 406.
  • the wavelength division multiplexing component 405 is mounted on the left side of the coupling lens 406 to realize wavelength division multiplexing of four parallel optical waves into one parallel light. Due to the limitation of the module structure, the position of the pin collimator 201 relative to the package is misaligned, and is offset by the optical path turning element 404. Therefore, the optical path turning element 404 is located on the left side of the wavelength division multiplexing component 405, and the envelope 408 is open. On the right side of the window, the pin collimator 201 is in contact with the light passing window of the envelope 408 and is fixed by laser welding.
  • Corresponding receiving optical devices 301, 304 whose internal structure is distributed as shown in FIG. 5, are in order, LC optical port 501, multimode pin 502, collimating lens 503, wave decomposition multiplexing component 504, array lens 505
  • the LC optical port 501, the multimode pin 502, and the collimating lens 503 are assembled into a multimode pin collimator 204.
  • Collimating lens 503 includes, but is not limited to, c-lens, G-lens, D-lens, and aspherical lenses.
  • Wave decomposition multiplexing component 504, array lens 505, detector chipset 506, and package 507 form a package assembly 205.
  • the wavelength division multiplexing component 504 may be a combination of a plurality of filters, a combination of polarization combining elements, or a combination of a polarization combining element and a filter.
  • the end face of the multimode pin 502 is located near the focus of the collimating lens 503, so the pin collimator 204 can output parallel light.
  • detector chip 506 is located The vicinity of the focus of the array lens 505.
  • the dual lens coupling method of the collimating lens 503 and the array lens 505 selects a suitable lens combination to achieve high coupling efficiency.
  • the collimating lens adopts a lens with a large numerical aperture, so that the spot of the numerical aperture of the multimode fiber can pass through the collimating lens 503 with high coupling efficiency, and the multimode parallel light formed thereafter. . Since the numerical aperture angle of a multimode fiber is larger than the numerical aperture angle of a single mode fiber, the lens applied to the multimode pin collimator is also suitable for transmission of a single mode fiber.
  • the device further includes an aperture 509, which may be disposed at the port of the pin collimator 204, or may be disposed at the light passing window of the package assembly 205, or may be disposed at the light passing port of the wave decomposition multiplexing component 504. Whereas, it may be disposed at the image focal plane of the collimating lens 503, or the aperture of the filter element or the polarization beam splitting component or other components of the wavelength division multiplexing component may be limited to achieve the effect of the pupil, or It is disposed near the surface of the array lens 505.
  • the role of the aperture is to limit the spot mode caused by the higher order mode field transmitted in the multimode link.
  • the multi-mode pin collimator 204 is used at the optical port to ensure the high coupling efficiency of the detector.
  • the multi-mode fiber jitter can be reduced, and the spot spread caused by the high-order mode in the multi-mode link can be reduced. problem.
  • the size selection of the aperture refer to the method described in the second embodiment, and details are not described herein.
  • the optical path propagation mode of the corresponding light-emitting devices 302, 303 is as shown in FIG.
  • the laser chipset 407 is located near the object focus of the coupling lens group 406, and the four wavelength optical signals emitted by the coupling lens group 406 are coupled to form quasi-parallel light, and then combined into a beam of light by the wavelength division multiplexing component 405. Thereafter, it is received by the collimator lens 403 in the pin collimator 201 after being deflected by the optical path turning element 404, and then concentrated and transmitted inside the pin 402.
  • the optical path propagation mode of the corresponding receiving optical devices 301, 304 is as shown in FIG.
  • the light path is slightly different depending on the position of the aperture 509, and the light is disposed at the light passing window of the envelope 507 as an example.
  • the light wave transmitted by the link forms parallel light through the pin collimator 204, and then enters the inside of the envelope 507, and then reaches the aperture, which acts as a limiting effect on the side mode of the spot, allowing only slightly larger than the size of the fundamental mode field.
  • the beam passes, after which the beam reaches the wave decomposition multiplexing element 504, which is split into four different wavelengths of light waves for independent propagation, then reaches the array lens 505, which is then concentrated to the detector chip set 506, thereby forming a current output.
  • the invention proposes a parallel light-receiving module which can be used for dual-links and an interconnection manner thereof.
  • a parallel light-receiving module which can be used for dual-links and an interconnection manner thereof.
  • the built-in optical device adopts a conventional wavelength division multiplexing structure, the transmitting optical device adopts a single-mode pin collimator, and the receiving optical device adopts a multi-mode pin collimator; the same optical module can be realized.
  • the ability to transmit long-distance single-mode fiber and short-distance multimode fiber has the characteristics of low cost, batch size, and miniaturization.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne un module optique d'émission et de réception en parallèle pour une transmission en liaison double, et un procédé de préparation. Le module optique d'émission et de réception comprend un dispositif optique d'émission (103), un module optique de réception (104), une carte de circuits imprimés (PCB) (102), et une interface de données. Le dispositif optique de transmission (103) comprend un premier collimateur de broche de contact (201) et un premier ensemble tube (202). Le premier collimateur de broche de contact (201) comprend une première interface de fibre optique (401), une broche de contact monomode (402), et une première lentille de collimation (403), toutes étant séquentiellement couplées et fixées au premier collimateur de broche de contact (201). Le premier ensemble tube (202) comprend un ensemble de multiplexage par répartition en longueur d'onde (405), un groupe de lentilles de couplage (406), et un jeu de puces de laser (407), tous étant séquentiellement couplés et fixés à l'ensemble tube. Le module optique de réception (104) comprend un second collimateur de broche de contact (204) et un second ensemble tube (205). Le second collimateur de broche de contact (204) comprend une seconde interface de fibre optique (501), une broche de contact multimode (502) et une seconde lentille de collimation (503), toutes étant séquentiellement couplées et fixées au second collimateur de broche de contact (204). Le second ensemble tube (205) comprend un ensemble de démultiplexage par répartition en longueur d'onde (504), un réseau de lentilles (505) et un jeu de puces de détecteur (506), tous étant séquentiellement couplés et fixés à l'ensemble tube. Le module optique a des capacités de transmission sur une fibre optique monomode longue distance et une fibre optique multimode courte distance, et a des caractéristiques de faible coûts, de production par lots et de miniaturisation. L'invention concerne également un procédé de préparation du module optique.
PCT/CN2016/110355 2016-01-07 2016-12-16 Module optique d'émission et de réception en parallèle pour transmission en liaison double, et procédé de préparation Ceased WO2017118271A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610008050.3A CN105759371B (zh) 2016-01-07 2016-01-07 一种用于双链路传输的并行收发光模块和制作方法
CN201610008050.3 2016-01-07

Publications (1)

Publication Number Publication Date
WO2017118271A1 true WO2017118271A1 (fr) 2017-07-13

Family

ID=56342341

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/110355 Ceased WO2017118271A1 (fr) 2016-01-07 2016-12-16 Module optique d'émission et de réception en parallèle pour transmission en liaison double, et procédé de préparation

Country Status (2)

Country Link
CN (1) CN105759371B (fr)
WO (1) WO2017118271A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200328815A1 (en) * 2018-08-08 2020-10-15 Hisense Broadband Multimedia Technologies Co., Ltd. Optical module
CN111999827A (zh) * 2020-09-24 2020-11-27 武汉锐奥特科技有限公司 一种并行光路结构以及光模块
CN112162367A (zh) * 2020-09-24 2021-01-01 易锐光电科技(安徽)有限公司 光模块
CN112748497A (zh) * 2019-10-31 2021-05-04 福州高意光学有限公司 一种可实现多波长激光合束和分束的光学系统
CN113746555A (zh) * 2021-09-10 2021-12-03 吉林大学 一种基于高速单模光模块的多模光纤传输系统
CN113759473A (zh) * 2020-06-05 2021-12-07 华为技术有限公司 一种收发光组件、电子设备和光通信系统

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105759371B (zh) * 2016-01-07 2018-08-07 武汉电信器件有限公司 一种用于双链路传输的并行收发光模块和制作方法
CN106405755B (zh) * 2016-11-30 2018-11-06 武汉光迅科技股份有限公司 一种高速多通道的收发器件
CN108415130B (zh) * 2017-08-24 2024-06-04 四川新易盛通信技术有限公司 一种八通道高速率光接收器件
CN108873195B (zh) 2018-08-01 2020-10-13 青岛海信宽带多媒体技术有限公司 光模块及其光发射器件
CN108919435A (zh) * 2018-08-09 2018-11-30 青岛海信宽带多媒体技术有限公司 一种光模块
CN108873197B (zh) * 2018-08-08 2020-09-25 青岛海信宽带多媒体技术有限公司 一种光模块
CN109613664B (zh) * 2018-11-30 2021-04-02 广东瑞谷光网通信股份有限公司 计算机可读存储介质和应用该介质的四通道波分复用光发射器件的镭射耦合装置
CN109557622B (zh) * 2018-11-30 2020-08-04 广东瑞谷光网通信股份有限公司 计算机可读存储介质和应用该介质的四通道波分复用光接收器件的镭射耦合装置
CN109814214A (zh) * 2019-04-11 2019-05-28 武汉英飞光创科技有限公司 一种光学器件及准直光束定位系统
CN111025494A (zh) * 2019-12-19 2020-04-17 宁波环球广电科技有限公司 一种新型的cwdm tosa结构及其制造方法
CN114137671A (zh) * 2020-09-03 2022-03-04 青岛海信宽带多媒体技术有限公司 一种光模块
CN112804002B (zh) * 2021-02-05 2022-04-05 上海交通大学 基于mpo光纤跳线的短距互连网络
WO2022231893A1 (fr) * 2021-04-30 2022-11-03 Corning Research & Development Corporation Système de fibre optique comprenant des câbles à fibre optique multimodes et des connexions de fibre avec des dispositifs à fibre monomode à adaptation de mode
CN115016072B (zh) * 2022-07-25 2024-03-19 河南鑫宇光科技股份有限公司 一种提高光器件耦合效率的方法
CN115079347B (zh) * 2022-08-16 2023-04-07 武汉乾希科技有限公司 光发射接收组件和用于光发射接收组件的光路耦合方法
CN116520508A (zh) * 2023-05-06 2023-08-01 四川华岭光子科技有限公司 一种体积可控的多通道发射和接收光器件

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000147334A (ja) * 1998-11-18 2000-05-26 Hitachi Cable Ltd モードコンディショナ付き光送信器
CN102162883A (zh) * 2011-03-17 2011-08-24 武汉电信器件有限公司 光斑耦合转换装置
CN102684794A (zh) * 2012-06-06 2012-09-19 苏州旭创科技有限公司 应用于高速并行长距离传输的新型波分复用解复用光组件
EP2725729A1 (fr) * 2012-10-25 2014-04-30 Alcatel Lucent Procédé et système de transmission de données optiques
CN203838375U (zh) * 2014-04-11 2014-09-17 广州智能科技发展有限公司 单纤无源单多模传输转换器及光纤传输系统
CN104125517A (zh) * 2013-04-26 2014-10-29 中兴通讯股份有限公司 一种光传输系统、模式耦合器和光传输方法
US20150333829A1 (en) * 2014-05-16 2015-11-19 Corning Incorporated Multimode optical fiber transmission system including single mode fiber
CN105759371A (zh) * 2016-01-07 2016-07-13 武汉电信器件有限公司 一种用于双链路传输的并行收发光模块和制作方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5910057B2 (ja) * 2011-12-13 2016-04-27 住友電気工業株式会社 光受信モジュール
CN202600195U (zh) * 2012-06-21 2012-12-12 福州高意通讯有限公司 一种多路并行光收发结构
JP2014095843A (ja) * 2012-11-12 2014-05-22 Sumitomo Electric Ind Ltd 光合分波器およびその製造方法ならびに光通信モジュール
CN203301489U (zh) * 2013-07-05 2013-11-20 青岛海信宽带多媒体技术有限公司 具有多路波长通道的光发射器件、光接收器件及光模块
CN204314514U (zh) * 2014-12-05 2015-05-06 武汉电信器件有限公司 高可靠性非气密封装并行收发组件

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000147334A (ja) * 1998-11-18 2000-05-26 Hitachi Cable Ltd モードコンディショナ付き光送信器
CN102162883A (zh) * 2011-03-17 2011-08-24 武汉电信器件有限公司 光斑耦合转换装置
CN102684794A (zh) * 2012-06-06 2012-09-19 苏州旭创科技有限公司 应用于高速并行长距离传输的新型波分复用解复用光组件
EP2725729A1 (fr) * 2012-10-25 2014-04-30 Alcatel Lucent Procédé et système de transmission de données optiques
CN104125517A (zh) * 2013-04-26 2014-10-29 中兴通讯股份有限公司 一种光传输系统、模式耦合器和光传输方法
CN203838375U (zh) * 2014-04-11 2014-09-17 广州智能科技发展有限公司 单纤无源单多模传输转换器及光纤传输系统
US20150333829A1 (en) * 2014-05-16 2015-11-19 Corning Incorporated Multimode optical fiber transmission system including single mode fiber
CN105759371A (zh) * 2016-01-07 2016-07-13 武汉电信器件有限公司 一种用于双链路传输的并行收发光模块和制作方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200328815A1 (en) * 2018-08-08 2020-10-15 Hisense Broadband Multimedia Technologies Co., Ltd. Optical module
US11616575B2 (en) * 2018-08-08 2023-03-28 Hisense Broadband Multimedia Technologies Co., Ltd. Optical module
CN112748497A (zh) * 2019-10-31 2021-05-04 福州高意光学有限公司 一种可实现多波长激光合束和分束的光学系统
CN113759473A (zh) * 2020-06-05 2021-12-07 华为技术有限公司 一种收发光组件、电子设备和光通信系统
CN111999827A (zh) * 2020-09-24 2020-11-27 武汉锐奥特科技有限公司 一种并行光路结构以及光模块
CN112162367A (zh) * 2020-09-24 2021-01-01 易锐光电科技(安徽)有限公司 光模块
CN113746555A (zh) * 2021-09-10 2021-12-03 吉林大学 一种基于高速单模光模块的多模光纤传输系统

Also Published As

Publication number Publication date
CN105759371A (zh) 2016-07-13
CN105759371B (zh) 2018-08-07

Similar Documents

Publication Publication Date Title
WO2017118271A1 (fr) Module optique d'émission et de réception en parallèle pour transmission en liaison double, et procédé de préparation
CN104870069B (zh) 多通道，并行传输光模块，及其制造和使用方法
US9983374B2 (en) WDM Mux/DeMux on cable and methods of making the same
US9350454B2 (en) Multi-laser transmitter optical subassembly
US8625989B2 (en) Multi-laser transmitter optical subassemblies for optoelectronic modules
US9739962B2 (en) Plastic optical fiber data communication links
US20120189323A1 (en) Multi-laser transmitter optical subassembly
EP2790048A1 (fr) Module optique
CN106842439B (zh) 数据收发模块的光连接器和光连接器的透镜组
WO2018098858A1 (fr) Dispositif d'interface optique multiplexeur/démultiplexeur optique pour module optique à grande vitesse
KR20170137194A (ko) 광학 로터리 전기 연결부
WO2018157767A1 (fr) Module optique présentant une coexistence de plusieurs longueurs d'onde
US20140099055A1 (en) Single-Fiber Bi-Directional Optical Transceiver
US10379303B2 (en) Optical module and method for aligning optical module
CN109884753B (zh) 一种光接收组件以及组装方法
CN208506305U (zh) 一种多波长合波光学模块
CN110850533A (zh) 单纤四向光组件及光模块
KR102252682B1 (ko) 다채널 광모듈 장치 및 그것의 제조 방법
CN212749311U (zh) 紧凑型同轴度高的在线式四端口光纤波分复用器
TWI498619B (zh) 雙向光傳輸次組件
KR101908325B1 (ko) 양방향 센싱 통신을 위한 광 송수신기 및 광 송수신기 제작방법
CN210605095U (zh) 一种光模块
CN211293365U (zh) 一种光接收次组件
KR0170329B1 (ko) 광통신용 광합분파기
US20250110292A1 (en) Optical module

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16883397

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16883397

Country of ref document: EP

Kind code of ref document: A1