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    21.
    发明专利
    未知

    公开(公告)号：FR2716539B1

    公开(公告)日：1996-04-26

    申请号：FR9401871

    申请日：1994-02-18

    Applicant: CORNING INC

    Inventor： TROUCHET DENIS MARCEL ,  LERMINIAUX CHRISTIAN

    IPC: G02B6/122 ,  G02B6/125 ,  G02B6/28 ,  H04B10/02 ,  G02B6/12

    Abstract: A coupler is provided having waveguides which are arranged in two symmetrical groups in relation to the axis [X] of the coupler and consist of waveguide branches that are connected in a tree-like manner by n levels of Y-junctions, with at least the two output ports [S1] [S32] that are located farthest from the axis [X] of the coupler being fed by waveguides that have no singularities and that, between the first and the nth junction level of junctions, further consist of points of inflection located outside the junctions. The two junctions [44] [45] in the (n - 1)th level of the junctions that are located closest to the axis [X] of the coupler have axes of symmetry [X1] [X2] that are parallel to the axis of symmetry of the coupler, with the axis of each of these junctions defining an axis of symmetry for two junctions [57] [58] and [59] [510] in the nth junction level that are likewise parallel to the axis of the coupler, and also for the four output ports [S13] to [S16] and [S17] to [S20] that they feed.

    Integrated optics achromatic splitter and an MxN coupler incorporating such a splitter
    22.
    发明专利
    Integrated optics achromatic splitter and an MxN coupler incorporating such a splitter 未知

    公开(公告)号：AU662340B2

    公开(公告)日：1995-08-31

    申请号：AU2079692

    申请日：1992-08-05

    Applicant: CORNING INC

    Inventor： LERMINIAUX CHRISTIAN

    IPC: G02B6/122 ,  G02B6/12 ,  G02B6/125 ,  G02B6/28

    Abstract: A splitter is produced by ion diffusion in a glass substrate and it is designed to assure the transmission of an optical signal toward two outputs with a predetermined ratio of the signal power appearing at these 2 outputs. In accordance with the invention, it comprises an X-junction of two rectilinear waveguides defining at their intersection a half-angle alpha , the angle and the geometry of the central region being chosen in such a way as to establish the predetermined power ratio and the relative achromaticity of the device.

    METHOD OF MAKING A SYMMETRICAL OPTICAL WAVEGUIDE
    29.
    发明公开
    METHOD OF MAKING A SYMMETRICAL OPTICAL WAVEGUIDE 失效
    过程对于平衡光纤

    公开(公告)号：EP0880719A4

    公开(公告)日：1999-03-24

    申请号：EP97907565

    申请日：1997-02-04

    Applicant: CORNING INC

    Inventor： BORRELLI NICHOLAS F ,  LERMINIAUX CHRISTIAN ,  MASCHMEYER RICHARD O

    IPC: G02B6/13 ,  G02B6/16 ,  G03G17/00

    CPC classification number: G02B6/13 ,  G02B6/02114 ,  Y10S359/90

    Abstract: A structure for use in forming an optical component (30) and a method of making such a component (30) is described. The structure comprises a non-waveguiding body of optical material (34, 36, 38) having a concentration of a photorefractive-sensitive component in the body such that upon irradiation of a part (40) of the body by a beam of actinic radiation (42), the refractive index of the irradiated part is increased. The method of making the optical component (30) comprises providing a non-waveguiding body of optical material (34, 36, 38); providing a concentration of a photorefractive-sensitive component in the body; contacting the non-waveguiding body of optical material with an atmosphere comprising one of hydrogen, deuterium and mixtures thereof; and exposing a part (40) of the non-waveguiding body of optical material to actinic radiation (42) such that the refractive index of the exposed part is increased. Such a structure and method can be used to form symmetrical planar waveguides, optical fiber waveguides and other optical components such as gratings.

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