Polarization-induced fading in fiber-optic sensor arrays
Polarization-induced fading in fiber-optic sensor arrays
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DOI：
10.1109/50.400688
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发表时间：
1995-07
影响因子：
4.7
通讯作者：
M. Tur;Y. S. Boger;H. Shaw
中科院分区：
文献类型：
--
作者：
M. Tur;Y. S. Boger;H. Shaw
研究了由普通单模光纤和保偏光纤构成的迈克尔逊或马赫-曾德尔干涉型光纤传感器阵列的偏振可见度衰落统计特性。性能是根据观察到violence的概率来衡量的，对于数组的所有成员，所有violence都超过了给定的值。对于由非保偏光纤制成的阵列，获得非常差的性能，除非动态地控制偏振的输入状态以优化阵列的最差传感器的可见性。虽然使用更昂贵的保偏光纤，在原则上，可以解决这个偏振相关的衰落问题，有限的消光比的耦合器和接头，使这种阵列的性能与最佳控制的输入偏振非保偏阵列。>
The statistics of polarization-induced visibility fading is studied for fiber-optic interferometric (Michelson or Mach-Zehnder) sensor arrays made of either regular single-mode fibers or polarization-maintaining fibers. Performance is measured in terms of the probability to observe visibilities, all of which exceed a given value, for all members of the array. Very poor performance is obtained for arrays made of nonpolarization maintaining fibers, unless the input state of polarization is dynamically controlled to optimize the visibility of the worst sensor of the array. While the use of the more costly polarization-maintaining fibers could, in principle, solve this polarization-related fading problem, finite extinction ratios of couplers and splices make the performance of such arrays comparable to that of nonpolarization maintaining arrays with optimally controlled input-polarization. >