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JPS57190910A - Controlling method for coupling length of optical directional coupler - Google Patents

Controlling method for coupling length of optical directional coupler

Info

Publication number
JPS57190910A
JPS57190910A JP7542181A JP7542181A JPS57190910A JP S57190910 A JPS57190910 A JP S57190910A JP 7542181 A JP7542181 A JP 7542181A JP 7542181 A JP7542181 A JP 7542181A JP S57190910 A JPS57190910 A JP S57190910A
Authority
JP
Japan
Prior art keywords
laser
path
directional coupler
optical directional
controlling method
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
JP7542181A
Other languages
Japanese (ja)
Inventor
Masaharu Matano
Norihiro Ota
Kazuhiko Mori
Maki Yamashita
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP7542181A priority Critical patent/JPS57190910A/en
Publication of JPS57190910A publication Critical patent/JPS57190910A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/293—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection by another light beam, i.e. opto-optical deflection
    • 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
    • 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
    • G02B6/283—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 couplers being tunable or adjustable
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To realize the monitor control for the degree of coupling, by loading a material thin film which varies its refractive index by the irradiation of light on a waveguide path at one side of an optical directional coupler. CONSTITUTION:An optical directional coupler is formed by two optical waveguide paths 2 and 3 which are put close and in parallel to each other on a substrate 1. A thin film 4 of chalcogenide amorphous semiconductor, etc. which varies its refractive index by the irradiation of the light of a short wavelength is loaded on the path 3 with a thickness less than the cutoff wavelength. While the laser is put into the path 2. Then the laser of an He-Cd laser 7 is irradiated to the film 4 from the end to the center part while monitoring the intensity of the laser radiated fron the path 3 by the directional coupling by a detector 5.
JP7542181A 1981-05-19 1981-05-19 Controlling method for coupling length of optical directional coupler Pending JPS57190910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7542181A JPS57190910A (en) 1981-05-19 1981-05-19 Controlling method for coupling length of optical directional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7542181A JPS57190910A (en) 1981-05-19 1981-05-19 Controlling method for coupling length of optical directional coupler

Publications (1)

Publication Number Publication Date
JPS57190910A true JPS57190910A (en) 1982-11-24

Family

ID=13575706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7542181A Pending JPS57190910A (en) 1981-05-19 1981-05-19 Controlling method for coupling length of optical directional coupler

Country Status (1)

Country Link
JP (1) JPS57190910A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6470703A (en) * 1987-09-11 1989-03-16 Hitachi Ltd Waveguide type optical multiplexer and demultiplexer
JPH04218003A (en) * 1990-03-07 1992-08-07 Cselt Spa (Cent Stud E Lab Telecomun) Method for adjusting operating characteristic of integrated optical device
EP0503808A1 (en) * 1991-03-15 1992-09-16 Sperry Marine Inc. Variable ration fiber optic coupler optical signal processing element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6470703A (en) * 1987-09-11 1989-03-16 Hitachi Ltd Waveguide type optical multiplexer and demultiplexer
JPH04218003A (en) * 1990-03-07 1992-08-07 Cselt Spa (Cent Stud E Lab Telecomun) Method for adjusting operating characteristic of integrated optical device
EP0503808A1 (en) * 1991-03-15 1992-09-16 Sperry Marine Inc. Variable ration fiber optic coupler optical signal processing element

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