Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors
Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors
复制标题
用于干涉式光纤传感器无源复用的扩频技术
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
H. Al
中科院分区：
文献类型：
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作者：
D. Uttamchandani;H. Al
本文提出了两种新型的多路干涉光纤传感器技术。该技术使用半导体激光器的扩频调制和对来自干涉传感器网络的返回信号的电子或电光相关检测。一个由两个平行干涉传感器组成的网络被组装起来。我们实验的初步结果表明，当审讯系统监视特定传感器时，来自网络中其他传感器的信号可以被抑制超过25 dB。
Two novel techniques for multiplexing interferometric optical fiber sensors have been developed. The techniques use spread spectrum modulation of a semiconductor laser and electronic or electro-optic correlation detection of the returned signals from a network of interferometric sensors. A network consisting of two interferometric sensors in parallel has been assembled. Initial results from our experiments show that while the interrogation system monitors a specific sensor, the signals from other sensors in the network can be suppressed by over 25 dB.