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    SPCVD SILICATE GLASSES
    13.
    发明专利
    SPCVD SILICATE GLASSES 未知

    公开(公告)号：MY136003A

    公开(公告)日：2008-07-31

    申请号：MYPI20000941

    申请日：2000-03-10

    Applicant: CORNING INC

    Inventor： DEJNEKA MATTHEW J ,  KHRAPKO ROSTISLAV

    IPC: C03C3/06 ,  G02B6/00 ,  C03C3/062 ,  C03C3/083 ,  C03C3/112 ,  C03C3/23 ,  C03C3/253 ,  C03C4/00 ,  C03C4/12 ,  C03C13/04 ,  H01S3/06 ,  H01S3/17

    Abstract: THESE GLASSES INCORPORATE A COMBINATION OF F AND AI2O3 TO ACHIEVE EVEN WIDER FLUORESCENCE AND IMPROVED GAIN FLATNESS. IN ADDITION, SPCVD INCORPORATES LARGE AMOUNTS OF N INTO LOW-LOSS FIBER WHOSE HIGH CHARGE HAS AN IMPACT ON RARE EARTH BEHAVIOR. THE SURFACE PLASMA CHEMICAL VAPOR DEPOSITION (SPCVD) PRODUCES FIBER PREFORMS WITH HIGH LEVELS OF F, AI2O3, AND N.THESE HEAVILY FLUORINATED GLASSES PROVIDE MUCH BROADER Er3+ EMISSION THAN TYPE I OR TYPE II SILICA FOR ENHANCED MULTICHANNEL AMPLIFIERS.SPCVD SUCCESSFULLY FLUORINATES SILICA WITH LOSSES BELOW 5 dB/KM AND INCREASED Er3+ EMISSION WIDTH.(FIG 1)

    TUNGSTATE, MOLYBDATE, VANADATE BASE GLASSES
    16.
    发明专利
    TUNGSTATE, MOLYBDATE, VANADATE BASE GLASSES 未知

    公开(公告)号：CA2396961A1

    公开(公告)日：2001-07-26

    申请号：CA2396961

    申请日：2000-11-16

    Applicant: CORNING INC

    Inventor： AITKEN BRUCE G ,  DEJNEKA MATTHEW J

    IPC: C03C3/21 ,  C03C3/12 ,  C03C3/15 ,  C03C4/00 ,  C03C4/12 ,  C03C13/04 ,  C03C3/17 ,  H01S3/17

    Abstract: Alkali tungstate, molybdate and vanadate glasses, and telecommunications components embodying such glasses, the compositions of the glasses consistin g essentially of 15-70 mol percent of at least one oxide selected from the gro up consisting of WO3, MoO3 and VO2.5, 0-35 % CrO3, 0-15 % UO3, the total WO3 pl us MoO3 plus VO2.5 plus CrO3 plus UO3 being 50-70 %, 20-50 % R2O where R represents at least two elements selected from the group consisting of Li, N a, K, Rb, Cs, Ag and Tl, and optionally containing 0-10 % MO where M is selecte d from the groups of elements consisting of Ca, Ba, Sr, Mg, Cd, Pb, 0-5 % X2O3 where x is at least one element selected from the group consisting of Al, Ga , In and Bi, 0-5 % of at least one transition metal oxide, 0-15 % P2O5 and/or TeO2 and 0-5 % of a rare earth oxide selected from the lanthanide series.

    Composition for optical waveguide article and method for making continuous clad filament
    19.
    发明专利
    Composition for optical waveguide article and method for making continuous clad filament 未知

    公开(公告)号：AU743385B2

    公开(公告)日：2002-01-24

    申请号：AU8142798

    申请日：1998-06-11

    Applicant: CORNING INC

    Inventor： CHU POLLY W ,  DEJNEKA MATTHEW J ,  TYNDELL BRIAN P ,  YOST KEVIN J

    IPC: G02B6/00 ,  C03B37/012 ,  C03B37/023 ,  C03B37/026 ,  C03B37/027 ,  C03C13/04 ,  G02B6/02 ,  H01S3/06 ,  H01S3/10

    Abstract: An optical article having a rare earth doped, fluorinated aluminosilicate glass core composition consisting essentially, in mole %, of: - SiO2 0-90 - GeO2 0-90 - Na2O 0-25 - Li2O 0-10 - K2O 0-25 - Rb2O 0-25 - Cs2O 0-25 - Al2O3 5-40 - Ga2O3 5-40 - RE2(1)O3 0-40 - RE2(2)O3 0-1 - Er2O3 0.001-5 - Yb2O3 0-5 - PbO 0-15 - RO 0-20 - ZnO 0-10 - ZrO2 0-2 - TiO2 0-2 - Nb2O5 0-10 - Ta2O5 0-10 - P2O5 0-5 - B2O3 0-15 - As2O3 0-10 - Sb2O3 0-20 - Na2Cl2 0-10 - Bi2O3 0-5, and - up to 15 weight % fluorine in the form of at least one of a fluorinated component of the glass composition and a batch constituent selected from a group consisting of at least one of AlF3, REF3, NH5F2, NaF, Na2SiF6, Na3AlF6, where RE(1) is at least one of Y, La, Gd, and Lu; RE(2) is at least one of Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, and Tm; R is at least one of Ba, Ca, Mg, and Sr; (SiO2+GeO2) is in the range (40-90); and (Al2O3+Ga2O3)>(RO+"alk"2O+RE2O3) where "alk" is at least one of Li, Na, K, Cs, and Rb. A cullet-in-tube method for making continuous clad filament is also described. The invention provides for an optical waveguiding article having relatively high gain, a relatively flat gain spectrum, compatibility with conventional silica fiber, good durability and ease of manufacture.

    Methods and apparatus for producing optical fiber.
    20.
    发明专利
    Methods and apparatus for producing optical fiber. 未知

    公开(公告)号：ZA200101616B

    公开(公告)日：2001-09-17

    申请号：ZA200101616

    申请日：2001-02-27

    Applicant: CORNING INC

    Inventor： CHU POLLY W ,  DAHLMAN REBECCA ,  DEJNEKA MATTHEW J ,  SOLOSKY JOHN W ,  WILSON OTIS L JR

    IPC: G02B6/00 ,  C03B37/012 ,  C03B37/026 ,  C03B37/027 ,  G02B6/02 ,  C03C ,  G02B

    Abstract: Filament in tube and stick in tube processes of forming optical fiber are described. A solid or monolithic core feedstock (110) is disposed in a hollow cladding structure (112) to form a loosely filled cladding structure. The filled cladding structure is heated to a draw temperature approximately equal to the softening temperature of the cladding structure. The feedstock (110) melts and fills the heated portion of the cladding structure forming a filled core which can then be drawn into optical fiber or to an optical can which can then be further overclad consolidated and drawn into fiber. Feedstock (110) and cladding structures (112) having widely varying coefficients of expansion may be employed. The resulting fiber can be readily designed to be fused to existing installed fibers.

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