22 November 2011 Bending-induced sensing sensitivity in single-longitude-mode DBR fiber laser
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Proceedings Volume 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 819915 (2011) https://doi.org/10.1117/12.905270
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China
Abstract
In this paper, a bending sensor based on distributed Bragg reflector (DBR) fiber laser with single longitudinal mode operation is presented and experimentally demonstrated. The single longitudinal mode has two split orthogonal polarization modes, introducing the intracavity birefringence and hence causing the emergence of frequency beat. Based on the bending induced birefringence, this laser can be used for curvature sensing by measurement of the beat frequency shift of polarization mode. The sensing characteristics of the laser were shown in detail through theoretical analysis and experimental verification.
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Jianhua Luo, Bo Liu, Hao Zhang, Mengdong He, "Bending-induced sensing sensitivity in single-longitude-mode DBR fiber laser", Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 819915 (22 November 2011); doi: 10.1117/12.905270; https://doi.org/10.1117/12.905270
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