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Theoretical and Experimental Study of a Code-Division Multiplexing Fiber Bragg Grating Sensor System |
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| Authors: | Yuheng Huang Tuan Guo Chao Lu P. K. A. Wai |
| Affiliation: | 1. Photonics Research Center, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China rogerhyh@hotmail.com;3. Institute of Photonics Technology, Jinan University, Guangzhou, China;4. Photonics Research Center, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China |
| Abstract: | AbstractA novel scheme for a code-division multiplexing based fiber Bragg grating sensor system is theoretically analyzed and experimentally demonstrated. The results show that the proposed scheme enables an improved signal-to-noise ratio performance compared with the time-division multiplexing method and that spontaneous–spontaneous beating noise should be included in the analysis to avoid overestimation. The simple and effective setup provides a competitive approach for using fiber Bragg grating sensors in practical application systems. |
| Keywords: | code-division multiplexing fiber Bragg grating sensors temperature measurement |