An integrated fiber-optic turbulence sensor and its applications in maritime atmospheric optical turbulence research

Shu-mei Xiao; Hai-ping Mei; Qian Wang; Rui-zhong Rao

doi:10.1117/12.2032688

29 August 2013 An integrated fiber-optic turbulence sensor and its applications in maritime atmospheric optical turbulence research

Shu-mei Xiao, Hai-ping Mei, Qian Wang, Rui-zhong Rao

Author Affiliations +

Proceedings Volume 8914, International Symposium on Photoelectronic Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence Tomography; 89140D (2013) https://doi.org/10.1117/12.2032688
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

An integrated fiber-optic turbulence sensor based on non-balanced fiber-optic Mach-Zehnder interferometer with a small air gap as light path difference has been designed for detecting air refractive index fluctuation. For avoiding sensing signal fading and perturbations from circumstance during signal transmission, the phase generated carrier is used. The turbulence induced air refractive index fluctuations are demodulated by the algorithm of correlation. Background noise of the sensor is below10⁻¹⁷. By comparing with the refractive index structure constant measured by fine-wire resistance thermometer, results show good agreement in both their magnitude and tendency. For its outstanding property of corrosion protection, the sensor is especially suitable for maritime atmospheric optical turbulence research, which is verified by one month sea beach investigation. Some results of the maritime optical turbulence intensity are reported in the end.

Citation Download Citation

Shu-mei Xiao, Hai-ping Mei, Qian Wang, and Rui-zhong Rao "An integrated fiber-optic turbulence sensor and its applications in maritime atmospheric optical turbulence research", Proc. SPIE 8914, International Symposium on Photoelectronic Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence Tomography, 89140D (29 August 2013); https://doi.org/10.1117/12.2032688

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