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    METHODS AND APPARATUS FOR PRODUCING OPTICAL FIBER
    22.
    发明专利
    METHODS AND APPARATUS FOR PRODUCING OPTICAL FIBER 未知

    公开(公告)号：CA2341713A1

    公开(公告)日：2000-05-18

    申请号：CA2341713

    申请日：1999-08-24

    Applicant: CORNING INC

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

    IPC: G02B6/00 ,  C03B37/012 ,  C03B37/026 ,  C03B37/027 ,  G02B6/02 ,  C03B23/047 ,  G02B6/22

    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 hollo w cladding structure (112) to form a loosely filled cladding structure. The filled cladding structure is heated to a draw temperature approximately equa l to the softening temperature of the cladding structure. The feedstock (110) melts and fills the heated portion of the cladding structure forming a fille d core which can then be drawn into optical fiber or to an optical can which c an then be further overclad consolidated and drawn into fiber. Feedstock (110) and cladding structures (112) having widely varying coefficients of expansio n may be employed. The resulting fiber can be readily designed to be fused to existing installed fibers.

    Tantalum containing glasses and glass ceramics
    23.
    发明专利
    Tantalum containing glasses and glass ceramics 未知

    公开(公告)号：AU4702799A

    公开(公告)日：2000-01-24

    申请号：AU4702799

    申请日：1999-06-21

    Applicant: CORNING INC

    Inventor： AITKEN BRUCE G ,  BEALL GEORGE H ,  BORRELLI NICHOLAS F ,  DEJNEKA MATTHEW J

    IPC: G02B6/00 ,  C03C3/062 ,  C03C3/097 ,  C03C10/00 ,  C03C10/02 ,  G02B1/00 ,  H01S3/17 ,  C03C3/095

    Abstract: The present invention relates to a glass matrix which includes 4-70 wt. % SiO2, 0.5-20 wt. % Al2O3, 0-20 wt. % R2O, 0-30 wt. % R'O, 8-85 wt. % Ta2O5, 0-40 wt. % Nb2O5, and 0.01-1.0 wt. % R''2O3, where R2O+R''O is between about 2-35 wt. %, Ta2O5+Nb2O5 is between about 8-85 wt. %, R is selected from a group consisting of Li, Na, K, and combinations thereof, R' is selected from a group consisting of Ba, Sr, Ca, Mg, Zn, Pb, and combinations thereof, and R'' is a rare earth element. The present invention also relates to use of the glass matrix in forming optic waveguides such as optic amplifiers. The present invention further relates to a transparent glass ceramic that contains pyrochlore, perovskite, or a combination thereof as its major crystal phase, and includes 4-40 wt. % SiO2, 1-15 wt. % Al2O3, 0-20 wt. % K2O, 0-12 wt. % Na2O, 0-5 wt. % Li2O, 8-85 wt. % Ta2O5, and 0-45 wt. % Nb2O5, wherein Ta2O5+Nb2O5 is at least about 20 wt. % and (K2O+Li2O+Na2O) is between about 5-20 wt. %. Also disclosed is a method of making the glass ceramic and use of the glass ceramic as a ferro-electric component in electro-optical devices or as a filtering core in an optical filtering device.

    CAPILARES TRANSPARENTES CON FILTRO.
    26.
    发明专利
    CAPILARES TRANSPARENTES CON FILTRO. 未知

    公开(公告)号：MXPA06010988A

    公开(公告)日：2007-03-21

    申请号：MXPA06010988

    申请日：2005-03-09

    Applicant: CORNING INC

    Inventor： DEJNEKA MATTHEW J ,  YUEN PO KI ,  RASMUSSEN MICHAEL H

    IPC: B01L3/00 ,  G01N15/00 ,  G01N15/06 ,  G01N15/14

    Abstract: Un reactor microfluidico 10 para atrapar una o mas particulas de tamano o escala de tamanos nominales predeterminados que han entrado a una entrada 12 de flujo; incluye una zona 14 transparente de reaccion que tambien sirve como una zona de deteccion in situ, donde la zona de deteccion esta arreglada de modo que sustancialmente corresponda a la forma de un detector optico 456; un filtro 16 poroso que tiene una pluralidad de perforaciones que son menores al tamano o escala de tamanos nominales de las particulas 200, esta arreglado a modo de atrapar a las particulas en la zona 14 de reaccion mientras un fluido 18 fluye desde la entrada 12 de flujo a traves de la zona 14 de reaccion y del filtro 16.

    27.
    发明专利
    未知

    公开(公告)号：ID29631A

    公开(公告)日：2001-09-06

    申请号：ID20010689

    申请日：1999-08-24

    Applicant: CORNING INC

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

    IPC: G02B6/00 ,  C03B37/012 ,  C03B37/026 ,  C03B37/027 ,  G02B6/02 ,  C03C37/027 ,  G01B6/22

    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.

    Transparent oxyfluoride glass-ceramic composition and process for making
    28.
    发明专利
    Transparent oxyfluoride glass-ceramic composition and process for making 未知

    公开(公告)号：AU731393B2

    公开(公告)日：2001-03-29

    申请号：AU5597698

    申请日：1997-12-15

    Applicant: CORNING INC

    Inventor： DEJNEKA MATTHEW J

    IPC: C03C3/112 ,  C03C4/00 ,  C03C10/16 ,  H01S3/06

    Abstract: A transparent class ceramic composition includes an oxide component, a rare earth component, a halide component, and a substantially pure rare earth-halide (e.g., REF3) crystal component. A method for making a transparent oxyfluoride glass includes preparing an oxyfluoride glass containing rare earth ions by a conventional melting method and subjecting the glass to a heat treatment thereby precipitating fluoride fine crystals containing a large amount of rare earth ions.

    Composition for optical waveguide article and method for making continuous clad filament
    29.
    发明专利
    Composition for optical waveguide article and method for making continuous clad filament 未知

    公开(公告)号：AU8142798A

    公开(公告)日：1999-01-04

    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.

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