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Proceedings Paper

All-fiber hydrogen sensor based on stimulated Raman gain spectroscopy with a 1550-nm hollow-core fiber
Author(s): Fan Yang; Wei Jin
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Paper Abstract

We report a highly sensitive all-fiber hydrogen sensor based on continuous-wave stimulated Raman gain spectroscopy with a hollow-core photonic crystal fiber operating around 1550 nm. A pump-probe configuration is used, in which the frequency difference between the pump and the probe lasers is tuned to the S0(0) transition of para-hydrogen with a Raman shift of 354 cm-1. Preliminary experiments demonstrate a detection limit down to 17 ppm with a 250 s averaging time, and further improvement is possible. The all-fiber configuration operating in the telecommunication wavelength band would enable cost-effective and compact sensors for high sensitivity and high-resolution trace analysis.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103233C (23 April 2017); doi: 10.1117/12.2264988
Show Author Affiliations
Fan Yang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Shenzhen Research Institute (China)
Wei Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Shenzhen Research Institute (China)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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