JPS561002A - Light distributing circuit - Google Patents

Light distributing circuit

Info

Publication number
JPS561002A
JPS561002A JP7561979A JP7561979A JPS561002A JP S561002 A JPS561002 A JP S561002A JP 7561979 A JP7561979 A JP 7561979A JP 7561979 A JP7561979 A JP 7561979A JP S561002 A JPS561002 A JP S561002A
Authority
JP
Japan
Prior art keywords
recess
optical fibers
reflecting
light distributing
optical 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
JP7561979A
Other languages
Japanese (ja)
Inventor
Shigeo Matsushita
Hidenori Nomura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7561979A priority Critical patent/JPS561002A/en
Publication of JPS561002A publication Critical patent/JPS561002A/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
    • G02B6/2808—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 a mixing element which evenly distributes an input signal over a number of outputs

Landscapes

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

Abstract

PURPOSE:To reduce size, enhance reliability and decrease losses by forming the circuit to such construction comprising having a conical recess, providing a reflecting material on the inside wall thereof to provide the reflecting surface and inserting the ends of three or more optical fibers exposed of their core portions into the recess. CONSTITUTION:A conical recess 31a of a diameter 1mm. and depth 2mm. is provided to a reflecting material 31 composed of metals, resins, etc. and the reflecting film using gold or other materials is applied on its inside surface. The end of each optical fiber is formed into the shape comprising gradually decreasing the clad (d) at the end part and exposing the core (c). The ends of the optical fibers 32-38 are collectively inserted into the recess 31a. The exposed core portions are fixed in the mutually proximate state. The divergent light out from the optical fiber 32 is reflected by the reflecting film of the recess 31a and is efficiently distributed to the optical fibers 32-38. This light distributing circuit is small in size, is high in reliability and less in loss.
JP7561979A 1979-06-18 1979-06-18 Light distributing circuit Pending JPS561002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7561979A JPS561002A (en) 1979-06-18 1979-06-18 Light distributing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7561979A JPS561002A (en) 1979-06-18 1979-06-18 Light distributing circuit

Publications (1)

Publication Number Publication Date
JPS561002A true JPS561002A (en) 1981-01-08

Family

ID=13581399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7561979A Pending JPS561002A (en) 1979-06-18 1979-06-18 Light distributing circuit

Country Status (1)

Country Link
JP (1) JPS561002A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876808A (en) * 1981-10-07 1983-05-10 アルカテル・エヌ・ブイ Manufacture of low loss fused biconical taper optical fiber coupler
US4566753A (en) * 1982-08-07 1986-01-28 U.S. Philips Corporation Optical star coupler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876808A (en) * 1981-10-07 1983-05-10 アルカテル・エヌ・ブイ Manufacture of low loss fused biconical taper optical fiber coupler
JPS6214802B2 (en) * 1981-10-07 1987-04-03 Intaanashonaru Sutandaado Erekutoritsuku Corp
US4566753A (en) * 1982-08-07 1986-01-28 U.S. Philips Corporation Optical star coupler

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