50-km single-ended spontaneous-Brillouin-based distributed-temperature sensor exploiting pulsed Raman amplification
We demonstrate enhanced performance of a single-ended spontaneous-Brillouin-intensity-based distributed-temperature sensor with a sensing length of 50 km and a spatial resolution of 15 m by use of Raman amplification of the probe pulse within the sensing fiber. The Raman amplification was achieved w...
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Published in | Optics letters Vol. 28; no. 18; p. 1651 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
United States
15.09.2003
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Online Access | Get more information |
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Summary: | We demonstrate enhanced performance of a single-ended spontaneous-Brillouin-intensity-based distributed-temperature sensor with a sensing length of 50 km and a spatial resolution of 15 m by use of Raman amplification of the probe pulse within the sensing fiber. The Raman amplification was achieved with a copropagating pump pulse at 1450 nm. The standard deviation error of the temperature resolution was 1 degree C at the front end and increased to less than 13 degrees C at 50 km with Raman pulse amplification. |
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ISSN: | 0146-9592 |
DOI: | 10.1364/OL.28.001651 |