We demonstrate a liquid level sensor based on the surrounding medium refractive index (SRI) sensing using of an excessively tilted fibre Bragg grating (ETFBG). The sensor has low thermal cross sensitivity and high SRI responsivity.
© 2008 The Optical Society
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(280.4788) Remote sensing and sensors : Optical sensing and sensors
C. Mou, K. Zhou, L. Zhang, and I. Bennion, "Thermal Insensitive Optical Liquid Level Sensor Based on Excessively Tilted Fibre Bragg Grating," in Asia Optical Fiber Communication and Optoelectronic Exposition and Conference, OSA Technical Digest (CD) (Optical Society of America, 2008), paper SuR5.
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