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GB2283831B - Optical fibre elements - Google Patents

Optical fibre elements

Info

Publication number
GB2283831B
GB2283831B GB9421870A GB9421870A GB2283831B GB 2283831 B GB2283831 B GB 2283831B GB 9421870 A GB9421870 A GB 9421870A GB 9421870 A GB9421870 A GB 9421870A GB 2283831 B GB2283831 B GB 2283831B
Authority
GB
United Kingdom
Prior art keywords
optical fibre
fibre elements
elements
optical
fibre
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 - Lifetime
Application number
GB9421870A
Other versions
GB2283831A (en
GB9421870D0 (en
Inventor
Terry Bricheno
Alan Fielding
Michael Francis Grant
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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
Priority claimed from GB939323226A external-priority patent/GB9323226D0/en
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to GB9421870A priority Critical patent/GB2283831B/en
Publication of GB9421870D0 publication Critical patent/GB9421870D0/en
Publication of GB2283831A publication Critical patent/GB2283831A/en
Application granted granted Critical
Publication of GB2283831B publication Critical patent/GB2283831B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02B6/293—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
    • G02B6/29334—Grating-assisted evanescent light guide couplers, i.e. comprising grating at or functionally associated with the coupling region between the light guides, e.g. with a grating positioned where light fields overlap in the coupler

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
GB9421870A 1993-11-10 1994-10-31 Optical fibre elements Expired - Lifetime GB2283831B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9421870A GB2283831B (en) 1993-11-10 1994-10-31 Optical fibre elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939323226A GB9323226D0 (en) 1993-11-10 1993-11-10 Optical fibre elements
GB9421870A GB2283831B (en) 1993-11-10 1994-10-31 Optical fibre elements

Publications (3)

Publication Number Publication Date
GB9421870D0 GB9421870D0 (en) 1994-12-14
GB2283831A GB2283831A (en) 1995-05-17
GB2283831B true GB2283831B (en) 1996-11-06

Family

ID=26303838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9421870A Expired - Lifetime GB2283831B (en) 1993-11-10 1994-10-31 Optical fibre elements

Country Status (1)

Country Link
GB (1) GB2283831B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9423105D0 (en) 1994-11-16 1995-01-04 Northern Telecom Ltd Optical wave grating filter
GB2308252B (en) 1995-12-16 2000-02-23 Northern Telecom Ltd WDM channel insertion
DE69725815T2 (en) * 1996-09-05 2004-08-12 Oki Electric Industry Co., Ltd. Wavelength conversion device with improved efficiency, easy adjustability and polarization insensitivity
IT1292316B1 (en) * 1997-05-20 1999-01-29 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR THE CREATION OF FIBER BRAGG GRATINGS OR OPTICAL WAVE GUIDES.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093876A (en) * 1990-07-27 1992-03-03 At&T Bell Laboratories WDM systems incorporating adiabatic reflection filters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093876A (en) * 1990-07-27 1992-03-03 At&T Bell Laboratories WDM systems incorporating adiabatic reflection filters

Also Published As

Publication number Publication date
GB2283831A (en) 1995-05-17
GB9421870D0 (en) 1994-12-14

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20141030