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Proceedings Paper

Long distance (2.1km) DFB fibre laser hydrophone system
Author(s): Zhihao Chen; Junhong Ng
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Paper Abstract

We present an understanding of the effect of external optical feedback due to Rayleigh backscattering on distributed feedback (DFB) fibre laser. Based on this understanding, a new method is proposed to suppress self-pulsation of DFB fibre laser hydrophone to extend the sensing distance which is constrained by Rayleigh backscattering. A 2.1km DFB fibre laser hydrophone system has been successfully demonstrated to detect acoustic signals.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75034K (5 October 2009); doi: 10.1117/12.831135
Show Author Affiliations
Zhihao Chen, Institute for Infocomm Research (Singapore)
Junhong Ng, Institute for Infocomm Research (Singapore)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors

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