Nonlinear holography for acoustic wave detection

机译：用于声波检测的非线性全息术

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摘要

A liquid crystal medium is used to perform nonlinear dynamic holography and is coupled with multimode optical fibers for optical sensing applications. Thanks to the adaptive character of the nonlinear holography, and to the sensitivity of the multimode fibers, we demonstrate that the system is able to perform efficient acoustic wave detection even with noisy signals. The detection limit is estimated and multimode versus monomode optical fiber are compared. Finally, a wavelength multiplexing protocol is implemented for the spatial localization of the acoustic disturbances.

机译：液晶介质用于执行非线性动态全息，并与多模光纤耦合以用于光学传感应用。由于非线性全息技术的自适应特性以及多模光纤的灵敏度，我们证明了该系统即使在有噪声信号的情况下也能够执行有效的声波检测。估计检测极限，并比较多模光纤与单模光纤。最后，实现了一种波长多路复用协议，用于声干扰的空间定位。

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《Slow light, fast light, and opto-atomic precision metrology VIII》|2015年|93781T.1-93781T.9|共9页
会议地点 San Francisco CA(US)
作者
U. Bortolozzo; D. Dolfi; J.P. Huignard; S. Molin; A. Peigne; S. Residori;
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作者单位

INLN, Universite de Nice-Sophia Antipolis, CNRS, 1361 route des Lucioles, 06560 Valbonne, France;

Thales Reasearch and Technology France, 1 avenue Augustin Fresnel, F-91767 Palaiseau, France;

Jphopto, 20 Rue Campo Formio, 75013 Paris, France;

Thales Reasearch and Technology France, 1 avenue Augustin Fresnel, F-91767 Palaiseau, France;

Thales Underwater Systems, 525 route des Dolines, Sophia-Antipolis, France;

INLN, Universite de Nice-Sophia Antipolis, CNRS, 1361 route des Lucioles, 06560 Valbonne, France;

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正文语种 eng
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关键词
Adaptive holography; optical sensing; liquid crystals; optical fibers; acoustic wave detection;

机译：自适应全息术；光学传感液晶光纤;声波检测;

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4. Nonlinear holography for acoustic wave detection [C] . U. Bortolozzo, D. Dolfi, J.P. Huignard, Slow Light, Fast Light, and Opto-Atomic Precision Metrology . 2015

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机译：利用长波长声全息技术检测平板声辐射

Nonlinear holography for acoustic wave detection

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