25 October 2016 Development of laser light source with high stability for Brillouin optical fiber sensor
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Proceedings Volume 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology; 1015605 (2016) https://doi.org/10.1117/12.2243815
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
Temperature and strain measurement accuracy of Brillouin distributed optical fiber sensor are easily influenced by the performance of laser light source. A wavelength/power DFB semiconductor laser light source with high-stability used for Brillouin Fiber Sensing is designed. The laser light source works with constant-current drive circuit and temperature control circuit, which precisely controls drive current and operating temperature of the DFB semiconductor laser and makes the wavelength and optical power under control. The results show that: (1) the optical wavelength increases about 0.1nm and the power reduces about 0.05dBm when the temperature increased by 1°C . (2) The maximum drift of wavelength is 0.012nm and the maximum drift of optical power is 0.05dBm (0.0014mW) at 25 °C within one hour. The laser light source can completely meet the demand for Brillouin distributed optical fiber sensing.
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Liang Luo, Liang Luo, Jiacheng Hu, Jiacheng Hu, Zeguo Liu, Zeguo Liu, Chanyuan Wang, Chanyuan Wang, } "Development of laser light source with high stability for Brillouin optical fiber sensor", Proc. SPIE 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology, 1015605 (25 October 2016); doi: 10.1117/12.2243815; https://doi.org/10.1117/12.2243815
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