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    • 82. 发明申请
    • METHODS OF MAKING OPTICAL FIBER GRATINGS
    • 制造光纤光栅的方法
    • US20090208877A1
    • 2009-08-20
    • US12347269
    • 2008-12-31
    • Adrian Carter
    • Adrian Carter
    • G03F7/20
    • G02B6/02123C03C23/002G02B6/02133G02B6/02142G02B6/02147H01S3/0675H01S3/06754H01S3/2308
    • Optical fibers and optical fiber lasers including gratings and methods of writing gratings into fibers. A method can comprise providing a photosensitive optical fiber having a region having an original refractive index (RI) profile along the elongate direction of the fiber; exposing the optical fiber to actinic radiation to alter the original RI profile to form along a length of the fiber a grating having a RI profile including alternating higher RI and lower RI sections; and wherein the maximum RI difference between a RI of a higher RI section and a RI of an adjacent lower RI section of the grating RI profile is no greater than 85% of the difference between the average index of the grating RI profile and the original RI profile.
    • 光纤和光纤激光器包括光栅和将光栅写入光纤的方法。 方法可以包括提供具有沿着纤维的细长方向具有原始折射率(RI)轮廓的区域的光敏光纤; 将光纤暴露于光化辐射以改变原始RI分布,以沿着光纤的长度形成具有包括交替较高RI和较低RI部分的RI分布的光栅; 并且其中较高RI部分的RI与光栅RI轮廓的相邻较低RI部分的RI之间的最大RI差不大于光栅RI轮廓的平均指数与原始RI之间的差的85% 个人资料