WRITING OF PHOTO-INDUCED STRUCTURES
    1.
    发明公开
    WRITING OF PHOTO-INDUCED STRUCTURES 审中-公开
    SCHREIBEN VON LICHTINDUZIERTEN STRUKTUREN

    公开(公告)号:EP1540393A4

    公开(公告)日:2005-10-12

    申请号:EP03735149

    申请日:2003-06-27

    Abstract: A method of writing a photo-induced structure into a photosensitive material substrate, the method comprising the steps of creating an interference pattern utilising at least two light beams, exposing the substrate to the interference pattern for photo-inducing material changes in the substrate, and creating an irregularity in the interference pattern by controlling a wavefront of at least one of the beams, for creating a functional defect in the photo-induced structure.

    Abstract translation: 一种将感光结构写入光敏材料基片的方法,该方法包括以下步骤:利用至少两个光束产生干涉图案,将该基片暴露于干涉图案,用于在基片中感光材料变化,以及 通过控制至少一个光束的波前而在干涉图案中产生不规则性,用于在光致结构中产生功能缺陷。

    A GRATING DESIGN
    4.
    发明专利

    公开(公告)号:CA2385078A1

    公开(公告)日:2001-03-29

    申请号:CA2385078

    申请日:2000-09-21

    Applicant: UNIV SYDNEY

    Abstract: The present invention provides an optical device incorporating a sampled grating structure having a chirped sampling period. The present invention ma y alternatively be defined as a method of producing a grating structure in a photosensitive optical waveguide, the method comprising the step of irradiating the device with UV light at an intensity sufficient to induce refractive index variations in the waveguide in a manner to produce a sample d grating structure, and wherein the radiation is controlled in a manner to effect chirping of the sampling period. The invention may alternatively be defined as providing a group delay dispersion compensator device comprising a sampled grating structure a having chirped sampling period. It has also been recognised that a method of producing a zero dispersion WDM channel can be provided.

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