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Infrared radiation detector interrogated by optical frequency-domain reflectometer
We experimentally demonstrated a fast infrared (IR) radiation sensor. It is capable of measuring IR radiation independently from the environmental temperature fluctuations. Experimental work shows that this IR detection ...
Analysis of a novel sensor interrogation technique based on fiber cavity ring-down (CRD) loop and OTDR
We present the analysis of a remote sensor based on fiber Cavity Ring-Down (CRD) loop interrogated by an Optical Time Domain Reflectometer (OTDR) taking into account both practical limitations and the related signal ...
Optical fiber sensor system for remote and multi-point refractive index measurement
A Fresnel-reflection-based RI sensor using SMF fiber tips as sensing points interrogated by multi-wavelength OTDR from a distant location (up to several tens of kilometers) has been reported. The advantage of the system ...