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    RECOATABLE TEMPERATURE-NONREACTIVE LONG-CYCLE DIFFRACTION GRATING
    11.
    发明专利
    RECOATABLE TEMPERATURE-NONREACTIVE LONG-CYCLE DIFFRACTION GRATING 失效

    公开(公告)号：JPH11202113A

    公开(公告)日：1999-07-30

    申请号：JP29586598

    申请日：1998-10-16

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ABRAMOV ANATOLI A ,  HALE ARTURO ,  VENGSARKAR ASHISH MADHUKAR

    IPC: G02B5/18 ,  G02B6/02 ,  G02B6/10 ,  G02B6/293 ,  G02B6/34 ,  H01S3/06 ,  H04B10/12

    Abstract: PROBLEM TO BE SOLVED: To minimize the temperature reactivity of the long-cycle diffraction grating device. SOLUTION: This device includes an optical fiber 10 having a certain length, which has a core 11 surrounded with a composite cladding including a low- refractive-index part 12 and a high-refractive-index part 13 and transmits light in waveguide mode. The two parts 12 and 13 of the cladding have lower refractive indexes than the core 11. In this case, a polymer upper coating 20 with selected optical characteristics surrounds the composite cladding. In a preferable practical style, the temperature reactivity of the long-cycle diffraction grating written to a conventional dispersion shift fiber is reduced to less than 0.40 nm/100 deg.C.

    CLAD OPTICAL FIBER
    12.
    发明专利
    CLAD OPTICAL FIBER 失效

    公开(公告)号：JPH10197731A

    公开(公告)日：1998-07-31

    申请号：JP35026497

    申请日：1997-12-05

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： HALE ARTURO

    IPC: G02B6/00 ,  C08F290/06 ,  C08G18/67 ,  C09D175/16 ,  G02B6/036 ,  G02B6/42 ,  G02B6/22

    Abstract: PROBLEM TO BE SOLVED: To obtain an adequate viscosity, mechanical characteristics, such as toughness in a cured state and to simplify a synthesis by forming a clad of a curing material consisting of specific perfluoropolyether or perfluorohydrocarbon. SOLUTION: A three-layered clad structure consists of a single mode core 10 arranged in the central part in the multimode pumping clad 11. The pumping clad forms a boundary 12 with the second clad 13 and the third clad 14 forms a boundary 15 of most an annuler shape with the second clad 13. The three- layered clad structure consists of the silica glass clad, the pumping clad and the second clad 13 and is clad by an org. high-polymer coating. Namely, the clad 13 consisting of a material having the refractive index smaller than the refractive index of the core 10 is formed of the curing material consisting of the perfluoropolyether in which (meth)acrylate groups are bonded via urethane groups to the terminals of the main chain or perfluorohydrocarbon.

    14.
    发明专利
    未知

    公开(公告)号：DE69903703T2

    公开(公告)日：2003-06-26

    申请号：DE69903703

    申请日：1999-08-31

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ANATOLIA ABRAMOV ,  EGGLETON BENJAMIN JOHN ,  ESPINDOLA ROLANDO PATRICIO ,  HALE ARTURO

    IPC: H01S3/06 ,  G02B6/00 ,  G02B6/02 ,  G02B6/34 ,  G02F1/01 ,  H01S3/067 ,  H01S3/10 ,  H04B10/17 ,  H04B10/29 ,  G02B6/16

    Abstract: In accordance with the invention, a reconfigurable optical fiber grating comprises an optical fiber grating with a temperature sensitive material surrounding the cladding region or incorporated into the cladding region. One or more heating elements are arranged to produce a a temperature gradient along the length of the grating and thereby chirp the grating. In a preferred embodiment, a long period fiber grating is surrounded by a material in which dn/dT is 10 times as large as that of glass and in which n is close to but lower than that of the glass. A temperature gradient along the length of the grating results in a broadening of the resonance.

    15.
    发明专利
    未知

    公开(公告)号：DE69903703D1

    公开(公告)日：2002-12-05

    申请号：DE69903703

    申请日：1999-08-31

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ANATOLIA ABRAMOV ,  EGGLETON BENJAMIN JOHN ,  ESPINDOLA ROLANDO PATRICIO ,  HALE ARTURO

    IPC: H01S3/06 ,  G02B6/00 ,  G02B6/02 ,  G02B6/34 ,  G02F1/01 ,  H01S3/067 ,  H01S3/10 ,  H04B10/17 ,  H04B10/29 ,  G02B6/16

    Abstract: In accordance with the invention, a reconfigurable optical fiber grating comprises an optical fiber grating with a temperature sensitive material surrounding the cladding region or incorporated into the cladding region. One or more heating elements are arranged to produce a a temperature gradient along the length of the grating and thereby chirp the grating. In a preferred embodiment, a long period fiber grating is surrounded by a material in which dn/dT is 10 times as large as that of glass and in which n is close to but lower than that of the glass. A temperature gradient along the length of the grating results in a broadening of the resonance.

    COATED OPTICAL FIBER WITH INCREASED MODULUS AND THERMALLY ENHANCED STRIPPABILITY
    19.
    发明专利
    COATED OPTICAL FIBER WITH INCREASED MODULUS AND THERMALLY ENHANCED STRIPPABILITY 未知

    公开(公告)号：CA2312535A1

    公开(公告)日：2000-12-29

    申请号：CA2312535

    申请日：2000-06-27

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： TORNQVIST HAKAN ,  HALE ARTURO ,  KUCK VALERIE JEANNE ,  SIMPKINS PETER GERALD ,  ALOISIO CHARLES JOSEPH JR

    IPC: G02B6/44 ,  C03C25/10 ,  C03C25/24 ,  C09D4/06 ,  G02B6/16 ,  G02B6/22

    Abstract: In accordance with the invention, an optical fiber is provided with a protective coating having enhanced thermal characteristics for easy removal from the optical fiber. In particular, at elevated temperatures used in stripping, the delamination resistance drops to low levels substantially independent of modulus. This permits fabrication of a protectively coated fiber which has relatively high modulus and delamination resistance at room temperature but, due to its enhanced thermal characteristics, is nonetheless relatively easy to strip at elevated temperatures. Thus, for example, applicants can provide a protectively coated optical fiber or ribbon with a room temperature modulus of at least 90 psi, and a high temperature delamination resistance that is less than 40% of the room-temperature delamination resistance and preferably less than 30%. Coatings based on a polyether backbone and non-polar monomers are preferred.

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