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17 May 2011 Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775321 (2011) https://doi.org/10.1117/12.885802
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
A novel kind of Brillouin optical time-domain sensor based on direct modulation of a laser diode (LD) is demonstrated which is free from the use of any microwave device. The Brillouin pump and the probe waves are alternately generated by the LD modulation, and an optical time-domain analysis adopted for distributed measurement. Maps of Brillouin frequency shift are obtained with a spatial resolution of 2 m and an accuracy of ±2 MHz in a 2 km optical fiber.
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Kwang-Yong Song and Sora Yang "Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775321 (17 May 2011); https://doi.org/10.1117/12.885802
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