Thermal regeneration of fiber Bragg gratings in photosensitive fibers
Thermal regeneration of fiber Bragg gratings in photosensitive fibers
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DOI：
10.1364/oe.17.012523
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发表时间：
2009-07-20
期刊：
影响因子：
3.8
通讯作者：
Bartelt, Hartmut
中科院分区：
文献类型：
--
作者：
Lindner, Eric;Chojetzki, Christoph;Bartelt, Hartmut
报道了用纳秒激光脉冲对写入光敏光纤中的光纤布拉格光栅进行热再生的方法。我们在没有氢负载的高光敏光纤中观察到了再生过程，这表明光纤中的二次光栅是通过热激活而生长的。该工艺比众所周知的通过色心修改产生的光栅更稳定。研究了这种新型光纤光栅的写入条件，分析了这种再生光纤布拉格光栅的温度特性。通过利用I型光栅良好的光谱形状和II型类温度稳定性的组合，在高温传感器系统领域中具有应用的可能性。(C)2009年美国光学学会
We report about a thermal regeneration of fiber Bragg gratings written in photosensitive fibers with nanosecond laser pulses. We observe a regenerative process in a highly photosensitive fiber without hydrogen loading which indicates a secondary grating growth in an optical fiber by thermal activation. This process is more temperature stable than the commonly known gratings produced by color center modifications. The writing conditions of such new type of gratings are investigated and the temperature behavior of these regenerated fiber Bragg gratings is analyzed. The application possibilities are in the field of high temperature sensor systems by making use of the combination of good spectral shape of a Type I grating with a Type II like temperature stability. (C) 2009 Optical Society of America