17 May 2011 50km long distance DFB fiber laser hydrophone system
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77533B (2011) https://doi.org/10.1117/12.884752
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
We describe a new ultra long distance DFB fiber laser hydrophone system by using only one Raman pump laser source with 1W output power at 1395nm and one section of erbium doped fiber. An all fiber backscattering suppression module and 1550nm bandpass filter are used to reduce external reflection to DFB laser and remove unwanted the remaining pump light in 1480nm band. A 50km DFB fiber laser hydrophone system has been successfully demonstrated to detect acoustic signals.
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Zhihao Chen, Zhihao Chen, Junhong Ng, Junhong Ng, Venugopalan Pallayil, Venugopalan Pallayil, } "50km long distance DFB fiber laser hydrophone system", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533B (17 May 2011); doi: 10.1117/12.884752; https://doi.org/10.1117/12.884752
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