APPARATUS AND METHOD FOR PRODUCING A FLAT-TOPPED FILTER RESPONSE IN A MULTIPLEX/DEMULTIPLEXER

    公开(公告)号:AU2003283074A1

    公开(公告)日:2004-02-25

    申请号:AU2003283074

    申请日:2003-07-30

    Abstract: A (de)multiplexer for use in optical communications systems for multiplexing and demultiplexing an optical signal consisting of optical channel(s) of different wavelength(s) includes a multiplex optical waveguide propagating a plurality of optical channels and a plurality of single channel optical waveguides, each propagating a single channel. Each of the waveguides has a receiving/transmitting end. A diffraction grating is optically coupled between the multiplex optical waveguide and the single channel optical waveguides for diffracting an optical signal between the receiving/transmitting end of the multiplex optical waveguide and the receiving/transmitting end of the single channel optical waveguide. The grooves of the diffraction have spacing which varies according to an algorithm such that a portion of the optical signal diffracted by each groove is offset in a direction of dispersion relative to the portions of the optical signal diffracted by the other surfaces to broaden the transmission band at the receiving/transmitting ends of the single channel and multiplex optical waveguides. A method for fabricating a grating as described above includes etching grooves having spacing which varies according to the algorithm such that a portion of the optical signal diffracted by each surface is offset in a direction of dispersion relative to portions of the optical signal diffracted by each other surface.

    Apparatus and method for producing a flat-topped filter response in a multiplex/demultiplexer

    公开(公告)号:AU2003283074A8

    公开(公告)日:2004-02-25

    申请号:AU2003283074

    申请日:2003-07-30

    Abstract: A (de)multiplexer for use in optical communications systems for multiplexing and demultiplexing an optical signal consisting of optical channel(s) of different wavelength(s) includes a multiplex optical waveguide propagating a plurality of optical channels and a plurality of single channel optical waveguides, each propagating a single channel. Each of the waveguides has a receiving/transmitting end. A diffraction grating is optically coupled between the multiplex optical waveguide and the single channel optical waveguides for diffracting an optical signal between the receiving/transmitting end of the multiplex optical waveguide and the receiving/transmitting end of the single channel optical waveguide. The grooves of the diffraction have spacing which varies according to an algorithm such that a portion of the optical signal diffracted by each groove is offset in a direction of dispersion relative to the portions of the optical signal diffracted by the other surfaces to broaden the transmission band at the receiving/transmitting ends of the single channel and multiplex optical waveguides. A method for fabricating a grating as described above includes etching grooves having spacing which varies according to the algorithm such that a portion of the optical signal diffracted by each surface is offset in a direction of dispersion relative to portions of the optical signal diffracted by each other surface.

    APPARATUS AND METHOD FOR PRODUCING A FLAT-TOPPED FILTER RESPONSE IN A MULTIPLEX/DEMULTIPLEXER
    3.
    发明申请
    APPARATUS AND METHOD FOR PRODUCING A FLAT-TOPPED FILTER RESPONSE IN A MULTIPLEX/DEMULTIPLEXER 审中-公开
    用于在多路复用/解复用器中产生平坦过滤器响应的装置和方法

    公开(公告)号:WO2004015874A3

    公开(公告)日:2004-04-29

    申请号:PCT/US0323893

    申请日:2003-07-30

    CPC classification number: G02B6/2931 G02B6/2938

    Abstract: A (de)multiplexer (10) for use in optical communications systems for multiplexing and demultiplexing an optical signal consisting of optical channel(s) of different wavelength(s) (14, 16) includes a multiplex optical waveguide propagating a plurality of optical channels and a plurality of single channel optical waveguides, each propagating a single channel. Each of the waveguides has a receiving/transmitting end. A diffraction grating (22) is optically coupled between the multiplex optical waveguide and the single channel optical waveguides for diffracting an optical signal between the receiving/transmitting end of the multiplex optical waveguide and the receiving/transmitting end of the single channel optical waveguide. The grooves (24) of the diffraction (22) have spacing which varies according to an algorithm such that a portion of the optical signal diffracted by each groove (24) is offset in a direction of dispersion relative to the portions of the optical signal diffracted by the other surfaces to broaden the transmission band at the receiving/transmitting ends of the single channel and multiplex optical waveguides.

    Abstract translation: 用于对由不同波长(14,16)的光信道组成的光信号进行复用和解复用的光通信系统中的(de)多路复用器(10)包括多路光波导,其传播多个光信道 以及多个单通道光波导,每个传播单个通道。 每个波导具有接收/发送端。 衍射光栅(22)光耦合在多路复用光波导和单通道光波导之间,用于衍射多路光波导的接收/发射端与单通道光波导的接收/发射端之间的光信号。 衍射(22)的凹槽(24)具有根据算法而变化的间隔,使得由每个凹槽(24)衍射的光学信号的一部分相对于衍射的光信号的部分在色散方向上偏移 通过其他表面来扩大单通道的接收/发射端的传输频带和多路复用光波导。

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