Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 24, Issue 20, Pages 1823-1826Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2012.2212183
Keywords
Brillouin scattering; fiber optics sensors; Raman amplification; strain and temperature measurements
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Bidirectional low-noise Raman amplification and simplex coding based on the return-to-zero modulation format are optimized through numerical simulations for long-range Brillouin optical time-domain analysis sensing. Experimental results are reported on sensing capabilities along 120-km distance with 1-m spatial resolution, and worst-case temperature and strain resolution values of 1.3 degrees C and 26 mu epsilon, respectively.
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