GB2021806A - A coupler for detecting light propagating in an optical fibre - Google Patents

A coupler for detecting light propagating in an optical fibre

Info

Publication number
GB2021806A
GB2021806A GB7917661A GB7917661A GB2021806A GB 2021806 A GB2021806 A GB 2021806A GB 7917661 A GB7917661 A GB 7917661A GB 7917661 A GB7917661 A GB 7917661A GB 2021806 A GB2021806 A GB 2021806A
Authority
GB
United Kingdom
Prior art keywords
fibre
core
light propagating
optical fibre
coupler
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.)
Withdrawn
Application number
GB7917661A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB2021806A publication Critical patent/GB2021806A/en
Withdrawn legal-status Critical Current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
    • G02B6/42—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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
    • 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
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4236—Fixing or mounting methods of the aligned elements
    • G02B6/424—Mounting of the optical 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4256—Details of housings
    • G02B6/4257—Details of housings having a supporting carrier or a mounting substrate or a mounting plate
    • G02B6/4259—Details of housings having a supporting carrier or a mounting substrate or a mounting plate of the transparent type
    • 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
    • G02B6/4286—Optical modules with optical power monitoring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

A coupler, for extracting and detecting a portion of light propagating along an optical fibre connection in the direction of arrows (8), comprises an upstream portion of fibre (9) has a core (10) of larger diameter than the core (4) of a downstream portion of fibre (2), both portions having cladding of lower refractive index than their respective cores, and a light detector (18) preferably linked by an index matcher (22) which surrounds a length of the downstream portion. A portion of the light propagating in the core (10) of the upstream fibre is diverted by the step change in core diameters into the cladding (6) of the downstream fibre. This arrangement can be used either as a simple tap to extract light from an intermediate point along an optical fibre or it can be used as part of a duplex arrangement at one end of a fibre. <IMAGE>
GB7917661A 1978-05-30 1979-05-21 A coupler for detecting light propagating in an optical fibre Withdrawn GB2021806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816154A FR2427626A1 (en) 1978-05-30 1978-05-30 BYPASS DEVICE TO DETECT LIGHT FLOWING AN OPTICAL FIBER

Publications (1)

Publication Number Publication Date
GB2021806A true GB2021806A (en) 1979-12-05

Family

ID=9208861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7917661A Withdrawn GB2021806A (en) 1978-05-30 1979-05-21 A coupler for detecting light propagating in an optical fibre

Country Status (9)

Country Link
JP (1) JPS5554428A (en)
BE (1) BE876154A (en)
DE (1) DE2920885A1 (en)
DK (1) DK222079A (en)
FR (1) FR2427626A1 (en)
GB (1) GB2021806A (en)
IT (1) IT1118721B (en)
NL (1) NL7904182A (en)
SE (1) SE7904062L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220083A (en) * 1988-06-14 1989-12-28 Messerschmitt Boelkow Blohm Optical wave guide/detector combination
US5319195A (en) * 1991-04-02 1994-06-07 Lumonics Ltd. Laser system method and apparatus for performing a material processing operation and for indicating the state of the operation
EP2306225A1 (en) * 2008-07-25 2011-04-06 Panasonic Electric Works Co., Ltd. Hot line detection device
EP3696521A4 (en) * 2017-10-10 2021-07-21 Fujikura Ltd. Light detection device and laser device
US11320612B2 (en) * 2017-09-30 2022-05-03 Telescent Inc. Low loss optical monitors, optical monitor arrays and optical monitor patch-panels

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4421496B4 (en) * 1993-10-01 2006-09-07 Marquardt Gmbh Electronic door closing system on a motor vehicle
JP2010032273A (en) * 2008-07-25 2010-02-12 Panasonic Electric Works Co Ltd Hot line detection device
JP2010032650A (en) * 2008-07-25 2010-02-12 Panasonic Electric Works Co Ltd Hot line detection device
JP6734683B2 (en) * 2016-03-31 2020-08-05 株式会社フジクラ Optical monitor device and laser device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780295A (en) * 1972-03-30 1973-12-18 Corning Glass Works Light source coupler for optical waveguide
US4083625A (en) * 1976-08-02 1978-04-11 Corning Glass Works Optical fiber junction device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220083A (en) * 1988-06-14 1989-12-28 Messerschmitt Boelkow Blohm Optical wave guide/detector combination
GB2220083B (en) * 1988-06-14 1992-05-20 Messerschmitt Boelkow Blohm An optical wave guide / detector combination
US5319195A (en) * 1991-04-02 1994-06-07 Lumonics Ltd. Laser system method and apparatus for performing a material processing operation and for indicating the state of the operation
EP2306225A1 (en) * 2008-07-25 2011-04-06 Panasonic Electric Works Co., Ltd. Hot line detection device
EP2306225A4 (en) * 2008-07-25 2012-11-28 Panasonic Corp Hot line detection device
US11320612B2 (en) * 2017-09-30 2022-05-03 Telescent Inc. Low loss optical monitors, optical monitor arrays and optical monitor patch-panels
EP3696521A4 (en) * 2017-10-10 2021-07-21 Fujikura Ltd. Light detection device and laser device
US11366009B2 (en) 2017-10-10 2022-06-21 Fujikura Ltd. Light detection device and laser device

Also Published As

Publication number Publication date
IT1118721B (en) 1986-03-03
FR2427626A1 (en) 1979-12-28
NL7904182A (en) 1979-12-04
SE7904062L (en) 1979-12-01
DK222079A (en) 1979-12-01
JPS5554428A (en) 1980-04-21
IT7968113A0 (en) 1979-05-24
DE2920885A1 (en) 1979-12-13
BE876154A (en) 1979-11-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)