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Proceedings Paper

Wavelength/frequency-division multiplexing of heterodyning fiber grating laser sensors with the assistance of CO2-laser treatment
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Paper Abstract

In this paper, we demonstrate the implementation of a 1×10 array of heterodyning fiber grating laser sensors, pumped by a single 980 nm laser diode. The sensors are wavelength-multiplexed by inscribing fiber gratings with different periods and frequency-multiplexed in the RF domain with the assistance of CO2-laser treatment. Through the side irradiation from the CO2 laser, the intra-cavity birefringence can be significantly changed and the output frequency of the individual lasers can be continuously adjusted. The frequency range that can be achieved is as much as 1.5 GHz. As a result, the multiplexing capability of this kind of sensor is greatly improved.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211N (17 October 2012); doi: 10.1117/12.974910
Show Author Affiliations
Mengping Li, Jinan Univ. (China)
Long Jin, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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