| 摘要 |
Methods and apparatus allowing distributed temperature sensing (DTS) measurements to be compensated for differential and/or varying loss between Raman Stokes and anti-Stokes signals are provided. By irradiating an optical waveguide with signals at wavelengths at or near the Raman Stokes and anti-Stokes bands, a distributed loss profile for the waveguide may be generated. This distributed loss profile may be used to adjust the amplitudes or amplitude ratios of Raman Stokes and anti-Stokes signals used in DTS measurements, which may lead to more accurate DTS profiles.
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