GB2183866B - Optical fibre filter having tapered sections - Google Patents

Optical fibre filter having tapered sections

Info

Publication number
GB2183866B
GB2183866B GB8629036A GB8629036A GB2183866B GB 2183866 B GB2183866 B GB 2183866B GB 8629036 A GB8629036 A GB 8629036A GB 8629036 A GB8629036 A GB 8629036A GB 2183866 B GB2183866 B GB 2183866B
Authority
GB
United Kingdom
Prior art keywords
optical fibre
fibre filter
tapered sections
tapered
sections
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.)
Expired
Application number
GB8629036A
Other versions
GB8629036D0 (en
GB2183866A (en
Inventor
George Antony Georgiou
Anthony Christos Boucouvalas
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB8629036D0 publication Critical patent/GB8629036D0/en
Publication of GB2183866A publication Critical patent/GB2183866A/en
Application granted granted Critical
Publication of GB2183866B publication Critical patent/GB2183866B/en
Expired 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
    • 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
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
    • 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
    • G02B6/2835—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 formed or shaped by thermal treatment, e.g. couplers
    • 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
    • G02B6/29331—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 evanescent wave coupling
    • G02B6/29332—Wavelength selective couplers, i.e. based on evanescent coupling between light guides, e.g. fused fibre couplers with transverse coupling between fibres having different propagation constant wavelength dependency
    • 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
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optical Couplings Of Light Guides (AREA)
GB8629036A 1985-12-04 1986-12-04 Optical fibre filter having tapered sections Expired GB2183866B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8529861A GB8529861D0 (en) 1985-12-04 1985-12-04 Concatenated coupler

Publications (3)

Publication Number Publication Date
GB8629036D0 GB8629036D0 (en) 1987-01-14
GB2183866A GB2183866A (en) 1987-06-10
GB2183866B true GB2183866B (en) 1989-10-04

Family

ID=10589230

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8529861A Pending GB8529861D0 (en) 1985-12-04 1985-12-04 Concatenated coupler
GB8629036A Expired GB2183866B (en) 1985-12-04 1986-12-04 Optical fibre filter having tapered sections

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8529861A Pending GB8529861D0 (en) 1985-12-04 1985-12-04 Concatenated coupler

Country Status (3)

Country Link
EP (1) EP0248066A1 (en)
GB (2) GB8529861D0 (en)
WO (1) WO1987003701A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177803A (en) * 1991-04-29 1993-01-05 Corning Incorporated Coaxial optical fiber coupler transmitter-receiver apparatus and method of making same
FR2681438B1 (en) * 1991-09-16 1994-12-09 Alcatel Nv METHOD FOR LIMITING THE LOSS OF COUPLING BETWEEN A SINGLE - MODE OPTICAL FIBER AND AN OPTICAL SYSTEM HAVING DIFFERENT MODE DIAMETERS RESPECTIVELY.
US5473714A (en) * 1994-04-29 1995-12-05 At&T Corp. Optical fiber system using tapered fiber devices
US5479546A (en) * 1994-05-16 1995-12-26 Litton Systems, Inc. Optimized non-linear effect tapered optical fiber interferometer/switch device
GB9803275D0 (en) 1998-02-16 1998-04-08 Univ Southampton Optical fibre filters
GB9803709D0 (en) * 1998-02-20 1998-04-15 Univ Southampton Polarisation insensitive transmissive fibre devices
CN1311865A (en) * 1998-06-29 2001-09-05 康宁股份有限公司 Monolithic coaxial device
US6362916B2 (en) 1998-09-25 2002-03-26 Fiver Laboratories All fiber gain flattening optical filter
CA2266195C (en) * 1999-03-19 2004-12-21 Itf Optical Technologies Inc.-Technologies Optiques Itf Inc. Optical clean-up filters and method of making the same
US6459526B1 (en) 1999-08-09 2002-10-01 Corning Incorporated L band amplifier with distributed filtering

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494535A (en) * 1976-10-26 1977-12-07 Post Office Dielectric optical waveguides

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494535A (en) * 1976-10-26 1977-12-07 Post Office Dielectric optical waveguides

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Electronic l *

Also Published As

Publication number Publication date
GB8629036D0 (en) 1987-01-14
GB8529861D0 (en) 1986-01-15
WO1987003701A1 (en) 1987-06-18
GB2183866A (en) 1987-06-10
EP0248066A1 (en) 1987-12-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee