Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 17, Issue 6, Pages 1256-1258Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2005.846920
Keywords
Brillouin scattering; Raman amplifier; remote amplification; temperature sensors
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Enhanced performance of a distributed temperature sensor based on spatially resolving the temperature-dependent intensity of the spontaneous Brillouin scattered signal was accomplished by combining distributed Raman amplification and a remotely pumped erbium-doped fiber amplifier. A temperature resolution of 5.7 degrees C combined with a spatial resolution of 20 m was achieved at a range of 88 km.
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