The optimization of the spatial resolution of a 30-km distributed optical fiber temperature sensor

Details The optimization of the spatial resolution of a 30-km distributed optical fiber temperature sensor The optimization of the spatial resolution of a 30-km distributed optical fiber temperature sensor

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5634..225l&link_type=abstract

Advanced Sensor Systems and Applications II. Edited by Rao, Yun-Jiang; Kwon, Osuk Y.; Peng, Gang-Ding. Proceedings of the SPIE,

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The spatial resolution of a 30km distributed optical fiber sensor is optimized to 3m. Two methods to measure the spatial resolution of distributed optical fiber sensor were demonstrated. The lower limit of the spatial resolution of the system is determined by the width of the input laser pulse. The bandwidth of optoelectronic receiving system and the electronic system also affect the spatial resolution of the system. The bandwidth of the electronic system shall be matched with the pulse width of the laser. The spatial resolution of system can be measured directly or evaluated indirectly by the half width of the Fresnel reflection at the end of the fiber. The spatial resolution of the system reached 3m after the optimization.

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