JPS53120452A - Integraded optical branching device - Google Patents

Integraded optical branching device

Info

Publication number
JPS53120452A
JPS53120452A JP3580677A JP3580677A JPS53120452A JP S53120452 A JPS53120452 A JP S53120452A JP 3580677 A JP3580677 A JP 3580677A JP 3580677 A JP3580677 A JP 3580677A JP S53120452 A JPS53120452 A JP S53120452A
Authority
JP
Japan
Prior art keywords
optical branching
integraded
branching device
area
grooveshaped
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
JP3580677A
Other languages
Japanese (ja)
Inventor
Kiyoshi Asakawa
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 JP3580677A priority Critical patent/JPS53120452A/en
Publication of JPS53120452A publication Critical patent/JPS53120452A/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

Abstract

PURPOSE:To make it possible to accomplish the optical branching operation at a right angle or at a large angle in the vicinity of the former by providing a grooveshaped area, which has desired width and depth and a lower reractive index than that of the surrounding, at a desired position of a branching area.
JP3580677A 1977-03-29 1977-03-29 Integraded optical branching device Pending JPS53120452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3580677A JPS53120452A (en) 1977-03-29 1977-03-29 Integraded optical branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3580677A JPS53120452A (en) 1977-03-29 1977-03-29 Integraded optical branching device

Publications (1)

Publication Number Publication Date
JPS53120452A true JPS53120452A (en) 1978-10-20

Family

ID=12452159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3580677A Pending JPS53120452A (en) 1977-03-29 1977-03-29 Integraded optical branching device

Country Status (1)

Country Link
JP (1) JPS53120452A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121411A (en) * 1979-03-12 1980-09-18 Nippon Telegr & Teleph Corp <Ntt> Production of light circuit device
JPS56128903A (en) * 1980-03-14 1981-10-08 Nippon Telegr & Teleph Corp <Ntt> Manufacture of fiber optics
JPS59216107A (en) * 1983-05-25 1984-12-06 Fujitsu Ltd Optical branch circuit
EP0151637A1 (en) * 1983-08-15 1985-08-21 CHANG, David B. Intrawaveguide fiber optic beamsplitter/coupler
FR2570839A1 (en) * 1984-09-25 1986-03-28 Labo Electronique Physique DEVICE FOR COUPLING BETWEEN WAVEGUIDES, MONOLITHICALLY INTEGRATED WITH THESE ON SEMICONDUCTOR SUBSTRATE
JPS62119504A (en) * 1985-11-20 1987-05-30 Fujitsu Ltd Optical waveguide device
JPS6348535A (en) * 1986-08-19 1988-03-01 Nippon Telegr & Teleph Corp <Ntt> Optical switch
JPS6363007A (en) * 1986-09-03 1988-03-19 Fujitsu Ltd Waveguide type branching circuit
WO1988004785A1 (en) * 1986-12-19 1988-06-30 Hitachi, Ltd. Optical synthesizing/branching filter and optical module using the same
JPS63191106A (en) * 1987-02-04 1988-08-08 Hitachi Ltd Optical branching circuits
JPS6446707A (en) * 1987-08-17 1989-02-21 Nippon Telegraph & Telephone Optical path switching device
JPH02284643A (en) * 1989-01-10 1990-11-22 Kawasaki Steel Corp Recovering method for high-purity fine and superfine metallic and ceramics powder
JPH04204808A (en) * 1990-11-30 1992-07-27 Hitachi Cable Ltd Waveguide type optical branching circuit
JPH04299304A (en) * 1991-03-28 1992-10-22 Hitachi Cable Ltd Waveguide type optical switch

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121411A (en) * 1979-03-12 1980-09-18 Nippon Telegr & Teleph Corp <Ntt> Production of light circuit device
JPS56128903A (en) * 1980-03-14 1981-10-08 Nippon Telegr & Teleph Corp <Ntt> Manufacture of fiber optics
JPS59216107A (en) * 1983-05-25 1984-12-06 Fujitsu Ltd Optical branch circuit
EP0151637A1 (en) * 1983-08-15 1985-08-21 CHANG, David B. Intrawaveguide fiber optic beamsplitter/coupler
FR2570839A1 (en) * 1984-09-25 1986-03-28 Labo Electronique Physique DEVICE FOR COUPLING BETWEEN WAVEGUIDES, MONOLITHICALLY INTEGRATED WITH THESE ON SEMICONDUCTOR SUBSTRATE
JPS6194006A (en) * 1984-09-25 1986-05-12 アルカテル　アルストム　ルシェルシェ　ソシエテ　アノニム Manufacture of semiconductor device
JPS62119504A (en) * 1985-11-20 1987-05-30 Fujitsu Ltd Optical waveguide device
JPS6348535A (en) * 1986-08-19 1988-03-01 Nippon Telegr & Teleph Corp <Ntt> Optical switch
JPS6363007A (en) * 1986-09-03 1988-03-19 Fujitsu Ltd Waveguide type branching circuit
WO1988004785A1 (en) * 1986-12-19 1988-06-30 Hitachi, Ltd. Optical synthesizing/branching filter and optical module using the same
JPS63191106A (en) * 1987-02-04 1988-08-08 Hitachi Ltd Optical branching circuits
JPS6446707A (en) * 1987-08-17 1989-02-21 Nippon Telegraph & Telephone Optical path switching device
JPH02284643A (en) * 1989-01-10 1990-11-22 Kawasaki Steel Corp Recovering method for high-purity fine and superfine metallic and ceramics powder
JPH04204808A (en) * 1990-11-30 1992-07-27 Hitachi Cable Ltd Waveguide type optical branching circuit
JPH04299304A (en) * 1991-03-28 1992-10-22 Hitachi Cable Ltd Waveguide type optical switch

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