Fiber apparatus having improved grating fabrication and performance characteristics
    2.
    发明公开
    Fiber apparatus having improved grating fabrication and performance characteristics 审中-公开
    光纤装置具有改进的光栅制造和性能特征

    公开(公告)号:EP1273938A2

    公开(公告)日:2003-01-08

    申请号:EP02013723.8

    申请日:2002-06-20

    IPC分类号: G02B6/16

    摘要: Embodiments of the invention include a singlemode optical fiber (10) having an antimony (Sb) doped core region (12), a suitable cladding region (14) formed on the core region, and one or more gratings (16) written in the optical fiber. Optical fibers manufactured according to embodiments of the invention provide faster growth of grating strength, higher thermal stability, and longer photosensitive wavelength compared to conventional Ge doped silica optical fibers. The optical fiber is fabricated for applications such as fiber grating applications where the index of the core is modulated by UV radiation. Also, the addition of Sb in the core region of the singlemode optical fiber provides higher temperature (for example, greater than 100° C) applications of fiber gratings and a reduced degradation of the band rejection efficiency. Also, the optical fibers are more conducive to direct and non-destructive grating writing over polymer jackets with a longer photosensitive wavelength in the UV range.

    摘要翻译: 本发明的实施例包括具有锑(Sb)掺杂核心区域(12),形成在核心区域上的合适包覆区域(14)以及写入光学中的一个或多个光栅(16)的单模光纤 纤维。 与传统的Ge掺杂石英光纤相比,根据本发明实施例制造的光纤提供更快的光栅强度增长,更高的热稳定性和更长的光敏波长。 光纤被制造用于诸如光纤光栅应用的应用,其中芯部的折射率由UV辐射调制。 而且,在单模光纤的纤芯区域中添加Sb提供了光纤光栅的较高温度(例如,大于100℃)应用以及降低了带阻效率的降低。 而且,光纤更有利于在UV范围内具有较长光敏波长的聚合物护套上的直接和非破坏性光栅写入。