1 August 1991 Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors
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Abstract
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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Deepak G. Uttamchandani, Deepak G. Uttamchandani, Hamed S. Al-Raweshidy, Hamed S. Al-Raweshidy, "Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors", Proc. SPIE 1511, Fiber Optic Sensors: Engineering and Applications, (1 August 1991); doi: 10.1117/12.45994; https://doi.org/10.1117/12.45994
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