SFDM/CWDM of fiber-optic Fizeau strain sensors

Y. J. Rao; C. X. Zhou; T. Zhu

doi:10.1117/12.668398

20 January 2006 SFDM/CWDM of fiber-optic Fizeau strain sensors

Y. J. Rao, C. X. Zhou, T. Zhu

Proceedings Volume 6027, ICO20: Optical Information Processing; 602747 (2006) https://doi.org/10.1117/12.668398
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

In this paper, a novel method for multiplexing a large number of fiber-optic Fizeau sensors using coarse wavelength division multiplexing (CWDM) and spatial-frequency division multiplexing (SFDM) is proposed and demonstrated. A CWDM device is used to multiplex signals from different sensor channels occupying different wavelength regions divided by the CWDM. More than 10 Fizeau sensors arranged in a single channel can be multiplexed by using SFDM due to the long cavity length of the Fizeau sensor. The experimental results show that a strain accuracy of ±5με is achieved. As up to 100 sensors can be multiplexed simultaneously, this approach can improve the multiplexing capacity of Fizeau strain sensors significantly.

Citation Download Citation

Y. J. Rao, C. X. Zhou, and T. Zhu "SFDM/CWDM of fiber-optic Fizeau strain sensors", Proc. SPIE 6027, ICO20: Optical Information Processing, 602747 (20 January 2006); https://doi.org/10.1117/12.668398

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