WO1995017705A3 - Method and apparatus for forming aperiodic gratings in optical fibers - Google Patents

Method and apparatus for forming aperiodic gratings in optical fibers Download PDF

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Publication number
WO1995017705A3
WO1995017705A3 PCT/US1994/011059 US9411059W WO9517705A3 WO 1995017705 A3 WO1995017705 A3 WO 1995017705A3 US 9411059 W US9411059 W US 9411059W WO 9517705 A3 WO9517705 A3 WO 9517705A3
Authority
WO
WIPO (PCT)
Prior art keywords
refractive index
wavelength
predetermined
fiber
variation
Prior art date
Application number
PCT/US1994/011059
Other languages
French (fr)
Other versions
WO1995017705A2 (en
Inventor
William H Glenn
Original Assignee
United Technologies 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 United Technologies Corp filed Critical United Technologies Corp
Priority to DE69411590T priority Critical patent/DE69411590T2/en
Priority to JP07517406A priority patent/JP3059761B2/en
Priority to EP95904045A priority patent/EP0736201B1/en
Publication of WO1995017705A2 publication Critical patent/WO1995017705A2/en
Publication of WO1995017705A3 publication Critical patent/WO1995017705A3/en

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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
    • G02B6/02123—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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Abstract

A method and apparatus for simultaneously exposing an optical fiber (32), made of a material which has a refractive index that can be permanently changed by exposure to light of a predetermined intensity at a predetermined wavelength, to two writing light beams (268, 272) which intersect and interfere in a predetermined region (30) of the fiber (32) so as to create an interference pattern along a longitudinal axis of the fiber (32), for a time long enough to form a permanent refractive index variation in the waveguide. Each of said two writing beams have a predetermined number of wavelengths, each wavelength being sufficiently different from each other so as to cause said refractive index variation to be an aperiodic variation. Also, each wavelength represents a Fourier component of the desired aperiodic refractive index variation.
PCT/US1994/011059 1993-12-20 1994-09-30 Method and apparatus for forming aperiodic gratings in optical fibers WO1995017705A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69411590T DE69411590T2 (en) 1993-12-20 1994-09-30 METHOD AND DEVICE FOR PRODUCING APERIODIC GRIDS IN OPTICAL FIBERS
JP07517406A JP3059761B2 (en) 1993-12-20 1994-09-30 Method and apparatus for forming asynchronous diffraction grating of optical fiber
EP95904045A EP0736201B1 (en) 1993-12-20 1994-09-30 Method and apparatus for forming aperiodic gratings in optical fibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/169,796 1993-12-20
US08/169,796 US5388173A (en) 1993-12-20 1993-12-20 Method and apparatus for forming aperiodic gratings in optical fibers

Publications (2)

Publication Number Publication Date
WO1995017705A2 WO1995017705A2 (en) 1995-06-29
WO1995017705A3 true WO1995017705A3 (en) 1995-09-08

Family

ID=22617217

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/011059 WO1995017705A2 (en) 1993-12-20 1994-09-30 Method and apparatus for forming aperiodic gratings in optical fibers

Country Status (7)

Country Link
US (1) US5388173A (en)
EP (1) EP0736201B1 (en)
JP (1) JP3059761B2 (en)
CA (1) CA2179042C (en)
DE (1) DE69411590T2 (en)
ES (1) ES2119372T3 (en)
WO (1) WO1995017705A2 (en)

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Also Published As

Publication number Publication date
JPH09506981A (en) 1997-07-08
CA2179042A1 (en) 1995-06-29
DE69411590D1 (en) 1998-08-13
ES2119372T3 (en) 1998-10-01
CA2179042C (en) 1998-01-06
EP0736201B1 (en) 1998-07-08
EP0736201A1 (en) 1996-10-09
WO1995017705A2 (en) 1995-06-29
JP3059761B2 (en) 2000-07-04
DE69411590T2 (en) 1998-11-12
US5388173A (en) 1995-02-07

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