WO2002027364A3 - Tunable grating-based dispersion compensator - Google Patents

Tunable grating-based dispersion compensator Download PDF

Info

Publication number
WO2002027364A3
WO2002027364A3 PCT/US2001/030216 US0130216W WO0227364A3 WO 2002027364 A3 WO2002027364 A3 WO 2002027364A3 US 0130216 W US0130216 W US 0130216W WO 0227364 A3 WO0227364 A3 WO 0227364A3
Authority
WO
WIPO (PCT)
Prior art keywords
grating
grating element
center portion
tunable
disposed
Prior art date
Application number
PCT/US2001/030216
Other languages
French (fr)
Other versions
WO2002027364A2 (en
Inventor
Martin A Putnam
Alan D Kersey
Timothy J Bailey
Original Assignee
Cidra Corp
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 Cidra Corp filed Critical Cidra Corp
Priority to CA002424032A priority Critical patent/CA2424032A1/en
Priority to JP2002530887A priority patent/JP2004510195A/en
Priority to EP01977205A priority patent/EP1322979A2/en
Priority to AU2001296341A priority patent/AU2001296341A1/en
Publication of WO2002027364A2 publication Critical patent/WO2002027364A2/en
Publication of WO2002027364A3 publication Critical patent/WO2002027364A3/en

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
    • G02B6/29304—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
    • G02B6/29313—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 characterised by means for controlling the position or direction of light incident to or leaving the diffractive element, e.g. for varying the wavelength response
    • G02B6/29314—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 characterised by means for controlling the position or direction of light incident to or leaving the diffractive element, e.g. for varying the wavelength response by moving or modifying the diffractive element, e.g. deforming
    • 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
    • G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
    • G02B6/022—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating using mechanical stress, e.g. tuning by compression or elongation, special geometrical shapes such as "dog-bone" or taper
    • 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
    • G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
    • G02B6/02204—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating using thermal effects, e.g. heating or cooling of a temperature sensitive mounting body
    • 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
    • G02B6/29379—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 characterised by the function or use of the complete device
    • G02B6/29392—Controlling dispersion
    • G02B6/29394—Compensating wavelength dispersion

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

A tunable dispersion compensating device includes a grating element (102) in the form of a bulk or large diameter waveguide, having an outer cladding (104) disposed about an inner core (106). The grating element may be etched, grounded or machined to form a generally 'dog bone' shape, wherein the end portions (108) of the grating element has a larger diameter than the center portion (110) disposed therebetween. A chirped grating (112) is written or impressed within the portion of the core disposed in the center portion of the grating element. The center portion is tapered to allow different stresses to be applied along the grating length when the grating element is compressed longitudinally by force F, and thereby vary chirp of the grating to tunable compensate for dispersion.
PCT/US2001/030216 2000-09-28 2001-09-27 Tunable grating-based dispersion compensator WO2002027364A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002424032A CA2424032A1 (en) 2000-09-28 2001-09-27 Tunable grating-based dispersion compensator
JP2002530887A JP2004510195A (en) 2000-09-28 2001-09-27 Tunable dispersion compensator with diffraction grating
EP01977205A EP1322979A2 (en) 2000-09-28 2001-09-27 Tunable grating-based dispersion compensator
AU2001296341A AU2001296341A1 (en) 2000-09-28 2001-09-27 Tunable grating-based dispersion compensator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67545500A 2000-09-28 2000-09-28
US09/675,455 2000-09-28

Publications (2)

Publication Number Publication Date
WO2002027364A2 WO2002027364A2 (en) 2002-04-04
WO2002027364A3 true WO2002027364A3 (en) 2003-03-06

Family

ID=24710569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/030216 WO2002027364A2 (en) 2000-09-28 2001-09-27 Tunable grating-based dispersion compensator

Country Status (5)

Country Link
EP (1) EP1322979A2 (en)
JP (1) JP2004510195A (en)
AU (1) AU2001296341A1 (en)
CA (1) CA2424032A1 (en)
WO (1) WO2002027364A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026458A2 (en) * 1995-02-22 1996-08-29 Pirelli Cavi S.P.A. Chirped optical fibre grating
WO2000037969A2 (en) * 1998-12-04 2000-06-29 Cidra Corporation Compression-tuned bragg grating and laser
EP1024376A1 (en) * 1999-01-26 2000-08-02 Lucent Technologies Inc. Optical grating device with variable coating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026458A2 (en) * 1995-02-22 1996-08-29 Pirelli Cavi S.P.A. Chirped optical fibre grating
WO2000037969A2 (en) * 1998-12-04 2000-06-29 Cidra Corporation Compression-tuned bragg grating and laser
EP1024376A1 (en) * 1999-01-26 2000-08-02 Lucent Technologies Inc. Optical grating device with variable coating

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PUTNAM M A ET AL: "Fabrication of tapered, strain-gradent chirped fibre Bragg gratings", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 31, no. 4, 16 February 1995 (1995-02-16), pages 309 - 310, XP006002436, ISSN: 0013-5194 *
SHIN D ET AL: "Design and implementation of PCB-type capacitance displacement sensor collocated with magnetic bearings", SENSORS AND ACTUATORS A, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. 71, no. 3, 1 December 1998 (1998-12-01), pages 223 - 229, XP004140100, ISSN: 0924-4247 *

Also Published As

Publication number Publication date
EP1322979A2 (en) 2003-07-02
CA2424032A1 (en) 2002-04-04
WO2002027364A2 (en) 2002-04-04
JP2004510195A (en) 2004-04-02
AU2001296341A1 (en) 2002-04-08

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