29 August 2013 A novel all-fiber velocity measurement system with high fringe contrast
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Proceedings Volume 8914, International Symposium on Photoelectronic Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence Tomography; 89140Y (2013) https://doi.org/10.1117/12.2034472
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China
Abstract
A novel all-fiber vibration velocity measurement system with high contrast of interfering fringes is proposed and demonstrated. The configuration utilizes polarization beam splitters to remove the unwanted reflected light beams. With a shaker vibration measurement experiment, it is shown that the system can successfully improve the interfering fringe contrast to 69.8% significantly and the results can be better if there is no counter reflecting light in 3×3 coupler. The system is also convenient in free-surface velocity measurement application of the shock wave and the experiment achieves long time measurement (700μs) in strong disturbance.
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Peng Lin, Peng Lin, Bo Jia, Bo Jia, Guangwei Hong, Guangwei Hong, "A novel all-fiber velocity measurement system with high fringe contrast", Proc. SPIE 8914, International Symposium on Photoelectronic Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence Tomography, 89140Y (29 August 2013); doi: 10.1117/12.2034472; https://doi.org/10.1117/12.2034472
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