Stress-location measurement along an optical fiber by synthesis of triangle-shaped optical coherence function
Stress-location measurement along an optical fiber by synthesis of triangle-shaped optical coherence function
复制标题
通过合成三角形光学相干函数沿光纤进行应力定位测量
DOI：
10.1109/68.914331
复制
发表时间：
2001
影响因子：
2.6
通讯作者：
Zuyuan He
中科院分区：
文献类型：
--
作者：
K. Hotate;Xueliang Song;Zuyuan He
A triangle-shaped optical coherence function is synthesized, and is applied to real-time stress-location measurement along an optical fiber. We utilize a polarization-maintaining fiber (PMF) as the sensing element. Stress-induced coupling from one eigenpolarization mode to the other is used as the sensing mechanism. The stress-position on PMF linearly corresponds to the delay difference between the two eigenpolarization modes, which is measured with a slope of the synthesized triangle coherence function. The degree of coherence changes linearly from one to zero with respect to the delay difference. By extracting the coherence value, the stress point is figured out in real time.
