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20 January 2006 Multiplexed optical fiber extrinsic Fabry-Perot interferometric sensor system
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Proceedings Volume 6027, ICO20: Optical Information Processing; 60274A (2006) https://doi.org/10.1117/12.668407
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China
Abstract
In this paper, a multiplexed optical fiber extrinsic Fabry-Perot interferometric (EFPI) sensor system with optical switch is implemented. To obtain the absolute length of the EFPI air gap, a cross-correlation signal processing method is introduced. The multiplexing of the sensors is basically based on a 1×N optical switch directly connected to a N-element EFPI sensor array. The EFPI sensors are interrogated one after the other with the same spectrometer by activating the corresponding channel of the optical switch. A multiplexed sensor system prototype with two EFPI sensors is demonstrated to verify the performance of the multiplexing method.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhenguo Jing and Qingxu Yu "Multiplexed optical fiber extrinsic Fabry-Perot interferometric sensor system", Proc. SPIE 6027, ICO20: Optical Information Processing, 60274A (20 January 2006); https://doi.org/10.1117/12.668407
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