JPS5494350A - Optical branching device - Google Patents

Optical branching device

Info

Publication number
JPS5494350A
JPS5494350A JP171778A JP171778A JPS5494350A JP S5494350 A JPS5494350 A JP S5494350A JP 171778 A JP171778 A JP 171778A JP 171778 A JP171778 A JP 171778A JP S5494350 A JPS5494350 A JP S5494350A
Authority
JP
Japan
Prior art keywords
fiber
polishing
branch
branch fiber
main
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
JP171778A
Other languages
Japanese (ja)
Inventor
Tsutomu Tanaka
Akimoto Serizawa
Katsuji Hattori
Yoshinobu Tsujimoto
Shoichi Fukai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP171778A priority Critical patent/JPS5494350A/en
Publication of JPS5494350A publication Critical patent/JPS5494350A/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
    • G02B6/2821—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 lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2826—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 lateral coupling between contiguous fibres to split or combine optical signals using mechanical machining means for shaping of the couplers, e.g. grinding or polishing
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters

Landscapes

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

Abstract

PURPOSE:To achieve the improvement in transmission characteristics and the reduction in light loss by bonding optical fibers with a deviation in the polishing positions of their polishing faces. CONSTITUTION:The curvatures of the main fiber 1 and branch fiber 2 to be bonded are made the same, and the polishing quantity of the branch fiber 1 is made larger than that of the main fiber 1. With the maximum polishing positions H, H' of the main fiber 1 and branch fiber 2 being mutually deviated and with the right ends of the polishing faces being mutually aligned, the main fiber and branch fiber 2 are bonded. Then, if light 18 having a propagation angle theta5 enters the branch fiber 2 at the bonding position D, the propagation angle theta6 to the branch fiber 2 is changed to theta6=theta5+a3-a4 (a3= HO'D, a4= H'O''D). In the case of a4>a3, the mode having propagated in the main fiber 1 is converted to a lower mode and even if the light enters from the incident position where it is converted to a higher mode, the rate of conversion becomes small, thus the intended object is achieved.
JP171778A 1978-01-10 1978-01-10 Optical branching device Pending JPS5494350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP171778A JPS5494350A (en) 1978-01-10 1978-01-10 Optical branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP171778A JPS5494350A (en) 1978-01-10 1978-01-10 Optical branching device

Publications (1)

Publication Number Publication Date
JPS5494350A true JPS5494350A (en) 1979-07-26

Family

ID=11509308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP171778A Pending JPS5494350A (en) 1978-01-10 1978-01-10 Optical branching device

Country Status (1)

Country Link
JP (1) JPS5494350A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131506A (en) * 1983-12-19 1985-07-13 リツトン　システムズ，インコ−ポレ−テツド Three-path connector and manufacture thereof
WO2024105776A1 (en) * 2022-11-15 2024-05-23 日本電信電話株式会社 Optical fiber coupler, optical fiber coupler production method, and optical multiplexing/demultiplexing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131506A (en) * 1983-12-19 1985-07-13 リツトン　システムズ，インコ−ポレ−テツド Three-path connector and manufacture thereof
WO2024105776A1 (en) * 2022-11-15 2024-05-23 日本電信電話株式会社 Optical fiber coupler, optical fiber coupler production method, and optical multiplexing/demultiplexing method

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