On-line writing identical and weak fiber Bragg grating arrays
On-line writing identical and weak fiber Bragg grating arrays
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DOI：
10.3788/col201311.030602
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发表时间：
2013-03-10
影响因子：
3.5
通讯作者：
Yu, Haihu
中科院分区：
文献类型：
--
作者：
Guo, Huiyong;Tang, Jianguan;Yu, Haihu
研究了利用相位掩模技术在线写入相同光纤光栅阵列的方法。由于激光功率的限制，写入光斑的能量密度均匀性和水平宽度无法进一步优化。结果表明，在最佳拉伸速度为12 +/- 0.15 m/min，平均张力为38.2 g的条件下，得到的光纤光栅阵列的中心波长带宽小于0.1 nm，平均反射率为0.26%。因此，相位掩模法是一种很有前途的在线写入相同的FBG阵列的替代方法。
We investigate the on-line writing identical fiber Bragg grating (FBG) arrays using the phase mask technique. Given the limitation of laser power, the energy density uniformity and the horizontal width of the writing spot cannot be further optimized. The results show that the FBG arrays obtained in the optimal process (drawing speed of 12 +/- 0.15 m/min and average tension of 38.2 g) have a central wavelength bandwidth of less than 0.1 nm and an average reflectivity of 0.26%. Thus, the phase mask method is a promising alternative for on-line writing identical FBG arrays.