Brillouin gain spectrum characterization in single-mode optical fibers
Brillouin gain spectrum characterization in single-mode optical fibers
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DOI：
10.1109/50.633570
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发表时间：
1997-10-01
影响因子：
4.7
通讯作者：
Robert, PA
中科院分区：
文献类型：
--
作者：
Nikles, M;Thevenaz, L;Robert, PA
提出了一种光纤布里渊增益谱测量的新方法。它基于泵浦和探测技术，其特点是使用单个激光源和外部调制器来生成相互作用的光波。该技术的高精度和固有稳定性使其适用于校准和参考测量。具有不同折射率分布的不同光纤已经过测试和表征。本文解决了相互作用波的偏振演化问题，并且通过两次不同偏振的连续测量，可以对实际布里渊增益系数进行偏振不敏感的确定。应变和温度对布里渊增益谱的影响也得到了充分表征。
A novel method for Brillouin gain spectrum measurements in optical fibers is presented. It is based on the pump and probe technique with the specificity to use a single laser source together with an external modulator to generate the interacting lightwaves. The high accuracy and inherent stability of the technique makes it suitable for calibration and reference measurements. Different fibers with different refractive index profiles have been tested and characterized. The problem of the evolution of the polarization of the interacting waves is addressed in the article and a polarization insensitive determination of the actual Brillouin gain coefficient is made possible through two successive measurements with different polarizations. The effects of strain and temperature on the Brillouin gain spectrum are also fully characterized.