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Proceedings Paper

Coherence-collapse characteristics of single-mode DFB fiber laser sensors with external optical feedback
Author(s): Wen Liu; Lina Ma; Huayong Yang
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Paper Abstract

On the basis of the complex cavity model, the feedback-induced instabilities which may cause coherence collapse in single-mode distributed feedback (DFB) fiber laser sensors are analyzed. We measure the longitudinal operating mode and the frequency shift of DFB fiber laser due to Rayleigh backscattering, and obtain quantitative agreement between simulation and experiments in long-time investigations. All these study can provide references to design a novel form of DFB fiber laser sensor system utilizing external optical feedback, and the feasibility of the sensor has been proved.

Paper Details

Date Published: 22 November 2011
PDF: 7 pages
Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 819905 (22 November 2011); doi: 10.1117/12.904763
Show Author Affiliations
Wen Liu, National Univ. of Defense Technology (China)
Lina Ma, National Univ. of Defense Technology (China)
Huayong Yang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8199:
2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Brian Culshaw; YanBiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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