A kind of M × N mechanical optical switch
Technical field
The invention belongs to optical communication technology fields, and in particular to the mechanical light of a kind of M × N for optical signal exchange is opened
It closes.
Background technique
Photoswitch is a kind of optical passive component realizing optical signal on-off, light path and changing, and is to realize optical communication network letter
One of the elemental device of number exchange, and realize one of core technology in all-optical network.Network technology is transmitted along with optic communication
Superelevation development, original optical switching technique performance continuously improves, and the photoswitch of various function types continues to bring out.According to mesh
Preceding production technology is broadly divided into two major classes to distinguish, and one kind is M × N photoswitch of MEMS (MEMS) technique, another kind of
That is M × N mechanical optical switch.
Mechanical optical switch have insertion loss is lower, isolation is high, wavelength and polarize unrelated, anti-vibration experimental performance
By force, technology also relative maturity is manufactured, therefore occupies extremely important status in optical communication network, and be widely used in light
The error protection of network switches, dynamic light path management and monitoring, the test of optical device, the flexible increase and decrease of business and transfer
Deng.
Existing M × N mechanical optical switch is to carry out M grades of cascades by M 1 × N mechanical optical switches just to realize M × N light
The switching function on road.After the cascade of M grade 1 × N mechanical optical switch photoswitch overall volume is bigger than normal, the response time is slow, cost
It is high, it is difficult to realize and be integrated with the light of other devices or photoelectricity, be also not susceptible to produce in enormous quantities, these problems all make existing M × N
Mechanical optical switch is difficult to promote and apply.
Summary of the invention
The object of the present invention is to provide the fast M × N mechanical optical switches of a kind of small volume, switch speed, including a column M
Core array collimator and a column N core array collimator, the optical path angle of cut of two column collimators are identical.Motor-driven sliding block with N
It is moved on the corresponding guide rail of core array collimator, when the reflecting mirror on sliding block is on the optical path intersection point of two column collimators, connection
Two optical paths.
A kind of M × N mechanical optical switch that the present invention designs includes multicore array collimator and control centre, cuboid
Four sides of back box are respectively A, B, A ' and B ', A and B it is adjacent and be mutually perpendicular to, A ' is parallel to A, and B ' is parallel to B.A is fixed side
1 M core array collimator is installed, 1 N core array collimator, N >=M is fixedly mounted in the side B adjacent thereto.The M core array
Collimator be aligned in the side back box A in conplane M identical collimator M1,M2…Mi…MM, their output
Optical path is parallel to each other, and the angle of cut with the side A of back box is α=70 °~110 °.Similar therewith, the N core array collimator is
Be arranged in the side back box B is in conplane N number of identical collimator N1,N2…Nj…NN, their input light path is mutual
In parallel, the angle of cut with the side B of the back box of back box is also α.The optical path direction of M core array collimator and N core array collimator is equal
In same plane.
N number of motor Q1,Q2…Qj…QNBe fixedly installed in the side B ' of back box, N root guide rail is installed on B and B ' two sides it
Between, each guide rail is each perpendicular to B and B ' two sides, a matched sliding block is installed on every guide rail, it is fixed on each sliding block
One piece of reflecting mirror is installed, the mirror surface of reflecting mirror is put down perpendicular to locating for M core array collimator and N core array collimator optical path direction
Face, N block reflecting mirror P1,P2…Pj…PNMirror surface it is opposite with N optical path of N core array collimator respectively.The output shaft of each motor
A respectively piece screw rod of connection, screw rod is parallel with guide rail, and every screw rod penetrates the wire hole of corresponding sliding block, when some motor opens
It is dynamic, drive the screw rod being attached thereto to rotate, the sliding block on the screw rod moves linearly along its guide rail.The electromagnetic switch and control of each motor
Center connection processed.
The integer that preferred version is M and N is 4~64.
Preferred plan is the integer of M=N=4~32.
Preferred version is A side of the output light path perpendicular to back box of the M core array collimator;It is similar therewith, institute
State B side of the input light path perpendicular to back box of N core array collimator.The optical path of M core array collimator and N core array collimator
Direction is mutually perpendicular to, and the mirror surface of the reflecting mirror on each sliding block and the angle of cut of optical path are 45 degree.
Light is sent into this switch by the input terminal of M core array collimator, and the operation of each motor keeps each sliding block mobile, works as reflection
Mirror PjIn MiOutput light path on when, by incident collimator MiAnaclasis to collimator Nj.Reflector position changes, optical path
Connection it is different, determine the light of input M core array collimator, through in N core array collimator which export.As reflecting mirror PjSuccessively
In M1,M2…MMOutput light path on when, input M1,M2…MMMLight will be successively from same NjCollimator output.Equally when anti-
Penetrate mirror P, P2…PNSuccessively it is in MiOutput light path on when, input same MiThe light of collimator will be successively from N1,N2…NNCollimation
Device output.I.e. incident some collimator miLight can choose N1,N2…NNAny collimator output.
Each motor installed in front has optoelectronic switch, and the optoelectronic switch is opposite light emitting end and receiving end, photoelectricity
The signal wire of switch accesses control centre.Anti-dazzling screen is installed in the side of sliding block, connects therewith when the sliding block on guide rail is moved adjacent to
When the motor connect, anti-dazzling screen is inserted between the light emitting end and receiving end of the optoelectronic switch of the motor, and the light of light emitting end is hidden,
Receiving end does not receive light, which will issue signal to control centre, and control centre disconnects the electromagnetism of the motor in time
Switch, motor are out of service.
The reflecting mirror is plane mirror, right-angle prism or prism of corner cube.Preferred plan is right-angle prism, can be complete by light
Reflection is easy installation, and good to mechanical stress stability and intensity.
Compared with prior art, the advantages of a kind of M × N mechanical optical switch of the invention are as follows: the road M input light can be made to select N
Road output light path;Compared with the identical tandem type mechanical optical switch of input and output number, volume reduces nearly half, insertion loss
It is low, isolation is high, at low cost, reproducible.The quick motor imagination of sliding block energy on guide rail, photoswitch switch speed are high.
Detailed description of the invention
Fig. 1 is this M × 8 core array collimator of N mechanical optical switch embodiment overall structure overall structure diagram;
Fig. 2 is this M × N mechanical optical switch embodiment 1 light path schematic diagram;
Fig. 3 is the structural schematic diagram of this M × 1 motor of N mechanical optical switch embodiment, sliding block and guide rail;
Fig. 4 is this M × 2 light path schematic diagram of N mechanical optical switch embodiment.
Figure internal label is
1, back box, 2, screw rod, 3, guide rail, 4, sliding block, 5, reflecting mirror, 6, optoelectronic switch,
7, anti-dazzling screen;
M1~M8 is 8 collimators of 8 core array collimators, and N1~N8 is 8 collimations of another 8 core array collimator
Device, Q1~Q8 are 8 motors arranged side by side.
Specific embodiment
It is described further with reference to the accompanying drawing to using this M × N photoswitch as embodiment.
M × N mechanical optical switch embodiment 1
This M × N mechanical optical switch embodiment 1 M=N=8 is 8 × 8 mechanical optical switches, including 28 core arrays
Collimator and control centre, the overall structure of 28 core array collimators is as shown in Figure 1,1 four sides of back box of cuboid are divided
Wei A, B, A ' and B ', A and B it is adjacent and be mutually perpendicular to, A ' is parallel to A, and B ' is parallel to B.18 core array is fixedly mounted in the side A
Another 18 core array collimator, the 8 core array collimators positioned at the side back box A are fixedly mounted in collimator, the side B adjacent thereto
It is in conplane 8 identical collimator M1,M2…M8, their output light path is parallel to each other, perpendicular to the A of back box 1
Side.Similar therewith, another 8 core array collimator positioned at the side B of back box 1 is identical in conplane 8
Collimator N1,N2…N8, their input light path is parallel to each other, perpendicular to the side B.The optical path direction of 28 core array collimators
It is mutually perpendicular to, is in same plane.
8 motor Q1,Q2…Qj…QNIt is fixedly installed in the side B ' of back box 1,8 guide rails 3 are installed on B and B ' two sides
Between, each guide rail 3 is each perpendicular to B and B ' two sides, a matched sliding block 4, each sliding block 4 are installed on every guide rail 3
Upper one piece of right-angle prism of fixed installation is reflecting mirror 5, N block reflecting mirror 5P1,P2…P8Slant reflection mirror surface respectively with 28 cores
The optical path direction of array collimator is at 45 degree.The output shaft of each motor respectively connects a screw rod 2, and screw rod 2 is parallel with guide rail 3, often
Root screw rod 2 penetrates the wire hole of corresponding sliding block 4, when some electric motor starting, drives the screw rod 2 being attached thereto to rotate, the silk
Sliding block 4 on bar 2 moves linearly along its guide rail 3.The electromagnetic switch of each motor is connect with control centre.
The optical path of this example is as shown in Fig. 2, light is sent into this switch, each electricity by the input terminal of 8 core array collimators of the side A
The operation of machine keeps each sliding block mobile, as reflecting mirror PjIn MiWhen on the output light path of collimator, by the incidence MiThe light of collimator
It is refracted to the collimator N of the side Bj.Reflector position changes, and the connection of optical path is different, determines that 8 core arrays of the input side A are quasi-
The light of straight device, which output in the 8N core array collimator through the side B.As reflecting mirror PjSuccessively it is in M1,M2…M8Output light
When road, M is inputted1,M2…M8Light will be successively from same NjCollimator output.Equally work as reflecting mirror P, P2…P8Successively it is in Mi
Output light path on when, input same MiThe light of collimator will be successively from N1,N2…N8Collimator output.Some i.e. incident collimation
Device MiLight can choose N1,N2…N8Any collimator output.
The structure of this example motor, sliding block 4 and guide rail 3 is as shown in figure 3, each motor installed in front has optoelectronic switch 6, the light
Electric switch 6 is opposite light emitting end and receiving end, and the signal wire of optoelectronic switch 6 accesses control centre.It installs the side of sliding block 4
Anti-dazzling screen 7, when the sliding block 4 on guide rail 3 is moved adjacent to the motor being attached thereto, the photoelectricity that anti-dazzling screen 7 is inserted in the motor is opened
It closes between 6 light emitting end and receiving end, the light of light emitting end is hidden, and receiving end does not receive light, which will be to control
Center processed issues signal, and control centre disconnects the electromagnetic switch of the motor in time, and motor is out of service.
M × N mechanical optical switch embodiment 2
This M × N mechanical optical switch embodiment 2 M=4, N=6 are 4 × 6 mechanical optical switches, including 4 core arrays standards
Straight device, 6 core array collimators and control centre, the structure of back box 1 is same as Example 1, which is arrangement
Conplane 4 identical collimator M are in the side back box A1,M2, M3, MM, their output light path is parallel to each other,
The angle of cut with the side A of back box is α=80 °.Similar therewith, the 6 core array collimator is aligned in the place of the side back box B
In conplane 6 identical collimator N1,N2…N6, their input light path is parallel to each other, the side B with the back box of back box
The angle of cut in face is also 80 °.The optical path direction of 4 core array collimators and 6 core array collimators is in same plane.
The optical path of this example is as shown in figure 4, light passes through some collimator M in 4 core array collimators of the side AiInput
This switch is sent at end, and the operation of each motor keeps each sliding block mobile, as reflecting mirror PjIn MiIt, will when on the output light path of collimator
The incidence MiCollimator N of the anaclasis of collimator to the side Bj。
This example motor, guide rail 3, screw rod 2, the structure of sliding block 4 and reflecting mirror 5 are same as Example 1.
Above-described embodiment is only further described the purpose of the present invention, technical scheme and beneficial effects specific
A example, present invention is not limited to this.All any modifications made within the scope of disclosure of the invention, change equivalent replacement
Into etc., it is all included in the scope of protection of the present invention.