CA2240519C - Optical waveguide with photosensitive refractive index cladding - Google Patents

Optical waveguide with photosensitive refractive index cladding Download PDF

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Publication number
CA2240519C
CA2240519C CA002240519A CA2240519A CA2240519C CA 2240519 C CA2240519 C CA 2240519C CA 002240519 A CA002240519 A CA 002240519A CA 2240519 A CA2240519 A CA 2240519A CA 2240519 C CA2240519 C CA 2240519C
Authority
CA
Canada
Prior art keywords
cladding
refractive index
core
region
optical waveguide
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 - Fee Related
Application number
CA002240519A
Other languages
English (en)
French (fr)
Other versions
CA2240519A1 (en
Inventor
Raman Kashyap
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.)
IPG Photonics Corp
Original Assignee
British Telecommunications 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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of CA2240519A1 publication Critical patent/CA2240519A1/en
Application granted granted Critical
Publication of CA2240519C publication Critical patent/CA2240519C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
    • G02B6/021—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/124—Geodesic lenses or integrated 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
    • G02B6/02—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
    • G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
    • G02B6/02085—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the grating profile, e.g. chirped, apodised, tilted, helical
    • 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
    • G02B6/02114—Refractive index modulation gratings, e.g. Bragg gratings characterised by enhanced photosensitivity characteristics of the fibre, e.g. hydrogen loading, heat treatment
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
CA002240519A 1996-01-18 1997-01-17 Optical waveguide with photosensitive refractive index cladding Expired - Fee Related CA2240519C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96300394 1996-01-18
EP96300394.2 1996-01-18
PCT/GB1997/000128 WO1997026571A2 (en) 1996-01-18 1997-01-17 Optical waveguide with photosensitive refractive index cladding

Publications (2)

Publication Number Publication Date
CA2240519A1 CA2240519A1 (en) 1997-07-24
CA2240519C true CA2240519C (en) 2006-01-10

Family

ID=8224809

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002240519A Expired - Fee Related CA2240519C (en) 1996-01-18 1997-01-17 Optical waveguide with photosensitive refractive index cladding

Country Status (6)

Country Link
US (1) US6104852A (enExample)
EP (1) EP0875014B1 (enExample)
JP (1) JP3929495B2 (enExample)
CA (1) CA2240519C (enExample)
DE (1) DE69738178T2 (enExample)
WO (1) WO1997026571A2 (enExample)

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US7689087B2 (en) * 2003-03-21 2010-03-30 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Method of changing the birefringence of an optical waveguide by laser modification of the cladding
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Also Published As

Publication number Publication date
DE69738178D1 (de) 2007-11-15
WO1997026571A2 (en) 1997-07-24
EP0875014A2 (en) 1998-11-04
JP2000503414A (ja) 2000-03-21
JP3929495B2 (ja) 2007-06-13
US6104852A (en) 2000-08-15
EP0875014B1 (en) 2007-10-03
DE69738178T2 (de) 2008-07-03
CA2240519A1 (en) 1997-07-24
WO1997026571A3 (en) 1998-08-27

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