Field-programmable gate array-based large-capacity sensing network with 1642 ultra-weak fiber Bragg gratings

Zhi Wang; Hongqiao Wen; Chenyuan Hu; Wei Bai; Yutang Dai

doi:10.3788/COL201614.010601

Chinese Optics Letters, Volume. 14, Issue 1, 010601(2016)

Field-programmable gate array-based large-capacity sensing network with 1642 ultra-weak fiber Bragg gratings

Zhi Wang¹, Hongqiao Wen^1,2、*, Chenyuan Hu¹, Wei Bai¹, and Yutang Dai¹

¹National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China

²Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China

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Figures & Tables(7)

Fig. 1. Illustration of interrogation system.

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Fig. 2. Modulation pulses generated by FPGA method.

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Fig. 3. FPGA timing of InGaAs detector.

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Fig. 4. Reflected power of FBG sensors (reflectivity=−40 dB).

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Fig. 5. Peak wavelength of FBG sensors.

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Fig. 6. Reflective spectrum of FBG sensors.

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Fig. 7. Measurement errors of peak wavelengths for FBG1–FBG5 and FBG1638–FBG1642.

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Zhi Wang, Hongqiao Wen, Chenyuan Hu, Wei Bai, Yutang Dai, "Field-programmable gate array-based large-capacity sensing network with 1642 ultra-weak fiber Bragg gratings," Chin. Opt. Lett. 14, 010601 (2016)

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Aug. 28, 2015

Accepted: Nov. 19, 2015

Published Online: Aug. 6, 2018

The Author Email: Hongqiao Wen (whq@whut.edu.cn)

DOI:10.3788/COL201614.010601

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology