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    DENSE WAVELENGTH DIVISION MULTIPLEXER/DEMULTIPLEXER BASED ONECHELLE GRATING
    1.
    发明专利
    DENSE WAVELENGTH DIVISION MULTIPLEXER/DEMULTIPLEXER BASED ONECHELLE GRATING 未知

    公开(公告)号：CA2383611C

    公开(公告)日：2006-11-14

    申请号：CA2383611

    申请日：2000-08-31

    Applicant: ZOLO TECHNOLOGIES INC

    Inventor： MURPHY GERRY ,  SAPPEY ANDREW D

    IPC: G02B6/34 ,  G02B5/18 ,  G02B6/293 ,  G02B27/30 ,  H04J14/02

    Abstract: A dense wavelength multiplexer/demultiplexer ("DWDM") (10) for us in optical communication systems includes a multiplex optical waveguide (14) propagatin g a plurality of optical channels (.lambda.iest;1-n) of a select channel spaci ng multiplexed as a single optical signal within a select near infrared wavelength range. a collimating/focusing optic (18) is optically coupled to the multiplexed optical waveguide at a select focal length. A reflective echelle grating (20) is optically coupled to the collimating/focusing optic (18). The echelle grating (20) has a groove spacing (d) and blaze angle (.theta.b) providing a channel spacing (d) of the multiplexed optical signal (.lambda.l-n) at the select focal length for a select order of diffraction. A linear array of single channel waveguides (16), each propagating a single channel within the near infrared wavelength range is optically coupled to th e collimating/focusing optic. Each optical single channel waveguide (16) has a center and a propagating end and the propagating ends are spaced the focal length from the collimating/focusing optic and the centers of adjacent demultiplexed waveguides are spaced the select channel spacing (D). A fiber pigtail harness is used to connect the multiplexer which works in a Littrow configuration.

    DENSE WAVELENGTH DIVISION MULTIPLEXER/DEMULTIPLEXER BASED ONECHELLE GRATING
    3.
    发明专利
    DENSE WAVELENGTH DIVISION MULTIPLEXER/DEMULTIPLEXER BASED ONECHELLE GRATING 未知

    公开(公告)号：CA2383611A1

    公开(公告)日：2001-03-15

    申请号：CA2383611

    申请日：2000-08-31

    Applicant: ZOLO TECHNOLOGIES INC

    Inventor： SAPPEY ANDREW D ,  MURPHY GERRY

    IPC: G02B5/18 ,  G02B6/293 ,  G02B6/34

    Abstract: A dense wavelength multiplexer/demultiplexer ("DWDM") (10) for us in optical communication systems includes a multiplex optical waveguide (14) propagatin g a plurality of optical channels (.lambda.iest;1-n) of a select channel spaci ng multiplexed as a single optical signal within a select near infrared wavelength range. a collimating/focusing optic (18) is optically coupled to the multiplexed optical waveguide at a select focal length. A reflective echelle grating (20) is optically coupled to the collimating/focusing optic (18). The echelle grating (20) has a groove spacing (d) and blaze angle (.theta.b) providing a channel spacing (d) of the multiplexed optical signal (.lambda.l-n) at the select focal length for a select order of diffraction. A linear array of single channel waveguides (16), each propagating a single channel within the near infrared wavelength range is optically coupled to th e collimating/focusing optic. Each optical single channel waveguide (16) has a center and a propagating end and the propagating ends are spaced the focal length from the collimating/focusing optic and the centers of adjacent demultiplexed waveguides are spaced the select channel spacing (D). A fiber pigtail harness is used to connect the multiplexer which works in a Littrow configuration.

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