KR940701538A - 광선로의 식별방법 - Google Patents

광선로의 식별방법

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Publication number
KR940701538A
KR940701538A KR1019930704090A KR930704090A KR940701538A KR 940701538 A KR940701538 A KR 940701538A KR 1019930704090 A KR1019930704090 A KR 1019930704090A KR 930704090 A KR930704090 A KR 930704090A KR 940701538 A KR940701538 A KR 940701538A
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South Korea
Prior art keywords
light
path
reflecting
optical
incident
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KR1019930704090A
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English (en)
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KR970004993B1 (ko
Inventor
아끼라 이노우에
야스시 핫토리
카쯔야 야마시타
후미오 오오쯔키
유타카 카쯔야마
Original Assignee
쿠라우찌 노리타카
스미도모덴기고오교오 가부시기가이샤
코지마 사토시
닛뽕덴신뎅와 가부시기가이샤
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Priority claimed from JP04112822A external-priority patent/JP3078106B2/ja
Priority claimed from JP04112804A external-priority patent/JP3078103B2/ja
Priority claimed from JP4112797A external-priority patent/JPH05307118A/ja
Priority claimed from JP04112805A external-priority patent/JP3078104B2/ja
Priority claimed from JP04112818A external-priority patent/JP3078105B2/ja
Priority claimed from JP04112808A external-priority patent/JP3129831B2/ja
Priority claimed from JP4112820A external-priority patent/JPH05313020A/ja
Application filed by 쿠라우찌 노리타카, 스미도모덴기고오교오 가부시기가이샤, 코지마 사토시, 닛뽕덴신뎅와 가부시기가이샤 filed Critical 쿠라우찌 노리타카
Publication of KR940701538A publication Critical patent/KR940701538A/ko
Application granted granted Critical
Publication of KR970004993B1 publication Critical patent/KR970004993B1/ko

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    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29305—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/29311—Diffractive element operating in transmission
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3118—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using coded light-pulse sequences
    • 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
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4482—Code or colour marking
    • 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
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/56—Processes for repairing optical cables
    • G02B6/562—Processes for repairing optical cables locatable, e.g. using magnetic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
    • G02B6/02133—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating using beam interference
    • G02B6/02138—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating using beam interference based on illuminating a phase mask
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
    • G02B6/02147—Point by point fabrication, i.e. grating elements induced one step at a time along the fibre, e.g. by scanning a laser beam, arc discharge scanning
    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29349—Michelson or Michelson/Gires-Tournois configuration, i.e. based on splitting and interferometrically combining relatively delayed signals at a single beamsplitter
    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29358—Multiple beam interferometer external to a light guide, e.g. Fabry-Pérot, etalon, VIPA plate, OTDL plate, continuous interferometer, parallel plate resonator
    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • 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
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29368—Light guide comprising the filter, e.g. filter deposited on a fibre end
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3845—Details of mounting fibres in ferrules; Assembly methods; Manufacture ferrules comprising functional elements, e.g. filters
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Signal Processing (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Communication System (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Glass Compositions (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

본 발명은, 광선로의 길이에 상관없이 정확하고 또한 용이하게, 광선로를 식별할 수 있는 방법을 제공하는 것이며, 이를 위하여 광선로상에 복수개의 반사부를 형성하고, 광선로마다 복수의 반사부의 상대위치의 조합을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광에 의거해서 반사부의 상대 위치를 검출하고, 그 검출결과에 의거해서 광선로를 식별한다. 구체적으로는, 광선로의 한쪽단부로부터 검사광을 입사하면 그 광은 식별표지인 복수의 반사부에서 반사되어서 입사단부로 되돌아온다. 반사부의 상대위치의 조합을 광선로마다 다른것으로 해두고, 각반사부로부터의 반사광의 광로차를 간섭계로 측정하거나, 각반사부로부터의 반사광이 되돌아올때까지의 시간차를 측정하는 등해서, 식별표지를 구성하는 복수의 반사부의 상대위치를 검출하면, 그 검출결과에 의거해서 광선로를 식별할 수 있다.

Description

광선로의 식별방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 식별방법을 적용하는 광선로설비관리시스템을 표시한 블록도.
제2도는 제1의 발명의 실시예에 사용하는 코드판독장치의 내부구성 및 그 주변장치를 표시한 블록도.
제3도는 식별표지의 구체예를 표시한 도면.
제4a도 및 제4b도는 각각 인터페로그램을 2치의 코드정보로 변환하는 방법에 대한 설명도.
제5도는 식별표지용의 분기광선로를 표시한 도면.
제6도는 코드판독장치의 다른 구성예를 표시한 블록도.
제7도는 그 측정결과를 일예를 표시한 그래프.

Claims (21)

  1. 광선로상에 1개 또는 복수개의 광반사부를 형성하고, 이들 광반사부로부터의 되돌아오는 광의 정보를 근거로 광선로를 식별하는 광선로의 식별방법.
  2. 제1항에 있어서, 광선로상에 복수의 광반사부를 형성하고, 광선로마다 상기 복수의 반사부의 상대위치의 조합을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광에 의거해서 상기 반사부의 상대위치를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  3. 제1항에 있어서, 광선로상에 특정파장만의 광을 반사하는 광반사부를 복수개소에 형성하고, 광선로마다 상기 복수의 반사부의 특정파장의 조합을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광의 파장을 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  4. 제1항에 있어서, 광선로상에 특정파장만의 광을 반사하는 광반사부들 복수개소에 형성하고, 광선로마다 상기 복수의 반사부의 특정파장 및 그 반사율의 조합을 바꾸어서 식별표지로 하고, 이들 광선로에 대해서 검사 광을 입사하였을때의 반사광의 파장 및 광강도를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  5. 제1항에 있어서, 광선로상에 특정파장만의 광을 반사하는 광반사부를 복수개소에 형성하고, 광선로마다 상기 복수의 반사부의 특정파장 및 그 상대위치의 조합을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광에 의해서 상기 특정파장 및 상대위치를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  6. 제1항에 있어서, 광선로상에 반사율이 파장에 의존하는 광반사부를 형성하고, 광선로마다 반사부의 파장 의존특성을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을 때의 상기 식별표지로부터의 반사광스펙트럼을 검출하고 그검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  7. 광선로에 분기선로를 형성하고, 이 분기선로상에 1개 또는 복수개의 광반사부를 형성하고, 이들 광반사부로부터의 되돌아오는 광의 정보를 근거로 광선로를 식별하는 광선로의 식별방법.
  8. 제7항에 있어서, 분기선로상에 복수의 광반사부를 형성하고, 광선로마다 상기 복수의 반사부의 상대위치의 조합을 바꾸어서 식별표지로 하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광에 의거해서 상기 반사부의 상대위치를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  9. 제7항에 있어서, 분기선로상에 특정파장만의 광을 반사하는 광반사부를 복수개소에 형성하고, 광선로마다 상기 복수의 반사부의 특정파장의 조합을 바꾸어서 식별표지로 하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광의 파장을 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  10. 제7항에 있어서, 분기선로상에 특정파장만의 광을 반사하는 광반사를 복수개소에 형성하고, 광선로마다 상기 복수의 반사부의 특정파장 및 그 반사율의 조합을 바꾸어서 식별표지로 하고, 이들 광선로에 대해서 검사광을 입사했을 때의 반사량의 파장 및 광강도를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  11. 제7항에 있어서, 분기선로상에 특정파장만의 광을 반사하는 광반사부를 복수개소에 형성하고, 광선로마다에 상기 복수의 반사부의 특정파장 및 그 상대위치의 조합을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 반사광에 의해서 상기 특정파장 및 상대위치를 검출하고, 그 검출결과에 의거해서 광선로식별하는 광선로의 식별방법.
  12. 제7항에 있어서, 분기선로상에 반사율이 파장에 의존하는 광반사부를 형성하고, 광선로마다 반사부의 파장의존특성을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 상기 식별표지로부터의 반사광스펙트럼을 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  13. 제1항∼제12항에 있어서, 광선로에 대해서 펄스상태의 검사광을 입사하고, 이때의 상기 각 식별표지로 부터 그위치에 따라서 시간적으로 어긋나서 되돌아오는 각각의 반사광의 정보를 판독하므로서, 광선로를 식별하는 광선로의 식별방법.
  14. 제1항∼제12항의 어느한항에 있어서, 반사부가 광선로의 굴절율을 국소적으로 변화시킨 줄무늬인것을 특징으로 하는 광선로의 식별방법.
  15. 제1항∼제12항의 어느한항에 있어서, 반사부가 광선로중에 삽입된 광필터인 것을 특징으로 하는 광선로의 식별방법.
  16. 제1항∼제12항의 어느한항에 있어서, 광선로중에 광코넥터에 의한 접속부가 존재하고, 반사부인 광필터가 상기 광코넥터의 단부면에 형성되어 있는 것을 특징으로 하는 광선로의 식별방법.
  17. 복수의 광선로를 한묶으로한 다심형광선로의 하나하나의 광선로에 대하여 선택적으로 반사부를 형성하고, 상기 다심형광선로마다 반사부의 유무 및 반사특성에 대한 조합을 바꾸어서 식별표지로하고, 이들 다심형광선로에 대해서 검사광을 입사하였을때의 상기 식별표지로부터의 반사광을 측정하고, 이 측정결과에 의거해서 다심형광선로를 식별하는 광선로의 식별방법.
  18. 제1항, 제2항, 제7항 또는 제8항의 어느한항에 있어서, 반사부로부터의 반사광의 광도차를 간섭계로 측정하고, 반사부의 상대위치를 검출하는 것을 특징으로 하는 광선로의 식별방법.
  19. 제1항, 제2항, 제7항 또는 제8항의 어느한항에 있어서, 반사부가 광선로상에 형성된 노치인 것을 특징으로 하는 광선로의 식별방법.
  20. 광선로상에 복수개의 굽힘손실부를 형성하고, 광선로마다 상기 복수의 굽힘손실부의 상대위치의 조합을 바꾸어서 식별표지로하고, 이들 광선로에 대해서 검사광을 입사하였을때의 후방산란에 의거해서 상기 굽힘손실부의 상대위치를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
  21. 광선로의 각각에 분기선로를 부가하고, 이들 분기선로상에 복수개의 굽힘손실부를 형성하고, 광선로마다 상기 복수의 굽힘손실부의 상대위치의 조합을 바꾸어서 식별표지로하고, 상기 광선로에 대해서 검사광을 입사하였을때의 후방산란광에 의거해서 상기 굽힘손실부의 상대위치를 검출하고, 그 검출결과에 의거해서 광선로를 식별하는 광선로의 식별방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930704090A 1992-05-01 1993-04-28 광선로의 식별방법 KR970004993B1 (ko)

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JP04112822A JP3078106B2 (ja) 1992-05-01 1992-05-01 光線路の識別方法
JP04112804A JP3078103B2 (ja) 1992-05-01 1992-05-01 光線路の識別方法
JP92-112822 1992-05-01
JP4112797A JPH05307118A (ja) 1992-05-01 1992-05-01 光線路の識別方法
JP92-112804 1992-05-01
JP92-112818 1992-05-01
JP92-112797 1992-05-01
JP04112805A JP3078104B2 (ja) 1992-05-01 1992-05-01 光線路の識別方法
JP92-112805 1992-05-01
JP92-112820 1992-05-01
JP04112818A JP3078105B2 (ja) 1992-05-01 1992-05-01 光線路の識別方法
JP04112808A JP3129831B2 (ja) 1992-05-01 1992-05-01 光線路の識別方法
JP92-112808 1992-05-01
JP4112820A JPH05313020A (ja) 1992-05-01 1992-05-01 光線路の識別方法
PCT/JP1993/000567 WO1993022647A1 (en) 1992-05-01 1993-04-28 Method for identifying optical line

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AU666382B2 (en) 1996-02-08
NO318903B1 (no) 2005-05-18
DE69321548D1 (de) 1998-11-19
CA2112692C (en) 2004-09-21
DE69333369T2 (de) 2004-10-07
CN1045663C (zh) 1999-10-13
NO934917D0 (no) 1993-12-30
EP0851248B1 (en) 2003-12-17
DE69321548T2 (de) 1999-04-15
NO934917L (no) 1994-02-24
EP0592690A4 (en) 1995-03-15
US5671308A (en) 1997-09-23
US5506674A (en) 1996-04-09
KR0148255B1 (en) 1998-08-17
EP0851248A2 (en) 1998-07-01
KR970004993B1 (ko) 1997-04-10
DE69333369D1 (de) 2004-01-29
CA2112692A1 (en) 1993-11-02
CN1238980C (zh) 2006-01-25
CN1249576A (zh) 2000-04-05
EP0592690A1 (en) 1994-04-20
EP0592690B1 (en) 1998-10-14
WO1993022647A1 (en) 1993-11-11
EP0851248A3 (en) 2000-01-26
CN1082717A (zh) 1994-02-23
AU4271393A (en) 1993-11-29

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