[go: up one dir, main page]

JPS549946A - Optical branching filter - Google Patents

Optical branching filter

Info

Publication number
JPS549946A
JPS549946A JP7445877A JP7445877A JPS549946A JP S549946 A JPS549946 A JP S549946A JP 7445877 A JP7445877 A JP 7445877A JP 7445877 A JP7445877 A JP 7445877A JP S549946 A JPS549946 A JP S549946A
Authority
JP
Japan
Prior art keywords
optical branching
branching filter
splitterlike
interposing
fiber
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.)
Pending
Application number
JP7445877A
Other languages
Japanese (ja)
Inventor
Hiroyuki Fujita
Kiyohide Miyake
Koji Yamaguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7445877A priority Critical patent/JPS549946A/en
Publication of JPS549946A publication Critical patent/JPS549946A/en
Pending legal-status Critical Current

Links

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
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2817—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using reflective elements to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To enable optical branching to be performed with less insertion loss by interposing a thin film of a beam splitterlike function in such a manner as not to intersect perpendicularly with the axial direction in the core of a fiber.
JP7445877A 1977-06-24 1977-06-24 Optical branching filter Pending JPS549946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7445877A JPS549946A (en) 1977-06-24 1977-06-24 Optical branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7445877A JPS549946A (en) 1977-06-24 1977-06-24 Optical branching filter

Publications (1)

Publication Number Publication Date
JPS549946A true JPS549946A (en) 1979-01-25

Family

ID=13547815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7445877A Pending JPS549946A (en) 1977-06-24 1977-06-24 Optical branching filter

Country Status (1)

Country Link
JP (1) JPS549946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456329A (en) * 1979-10-12 1984-06-26 Westinghouse Electric Corp. Optical device having multiple wavelength dependent optical paths

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228332A (en) * 1975-08-28 1977-03-03 Nippon Telegr & Teleph Corp <Ntt> Photo-divider
JPS5264939A (en) * 1975-11-25 1977-05-28 Nippon Telegr & Teleph Corp <Ntt> Orienting optical coupler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228332A (en) * 1975-08-28 1977-03-03 Nippon Telegr & Teleph Corp <Ntt> Photo-divider
JPS5264939A (en) * 1975-11-25 1977-05-28 Nippon Telegr & Teleph Corp <Ntt> Orienting optical coupler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456329A (en) * 1979-10-12 1984-06-26 Westinghouse Electric Corp. Optical device having multiple wavelength dependent optical paths

Similar Documents

Publication Publication Date Title
AU2857977A (en) Optical fibre connector
AU510176B2 (en) An optical fibre coupler
AU506897B2 (en) Optical fibre connector
JPS51139344A (en) Method of connecting optical fiber core contained in a pipe
JPS549946A (en) Optical branching filter
JPS522441A (en) Method of adjusting optical parts
AU504868B2 (en) Optical fibre coupler
JPS545753A (en) Photo switch
JPS5237443A (en) Junction part of optical fiber cables and process for connection there of
JPS5232341A (en) Optical fiber for electro communication
JPS53108452A (en) Attenuating element for optical fiber
AU507163B2 (en) Optical fibre splicing jig
JPS53106140A (en) Opitcal branching insept and preparation thereof
AU2963677A (en) Optical fibre connector
JPS5374804A (en) Optical transmission system
JPS5233744A (en) Optical fiber
JPS5337438A (en) Optical mode filter
JPS5367451A (en) Multicore connection method of optical fibers
JPS51134639A (en) Optical fiber coupling method
JPS53113564A (en) Optical fiber connector with lens and production of the same
JPS53103756A (en) Optical switch
JPS549952A (en) Optical connector and production of the same
JPS53149346A (en) Connecting method of optical fiber
JPS51118447A (en) Connecting method of optical fiber
JPS5271248A (en) Optical fiber material