Spontaneous Raman scattering in optical fibers with modulated probelight for distributed temperature Raman remote sensing |
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| Authors: | Farahani M.A. Gogolla T. |
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| Affiliation: | Lehrstuhl fur Allgemeine Elektrotech., Ruhr-Univ., Bochum; |
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| Abstract: | Long-length fiber-optic remote Raman sensors are used for distributed temperature measurements. Toward this aim, we apply optical-fiber frequency-domain reflectometry. The Raman intensity generated in single- and multimode optical fibers is theoretically investigated for sinusoidally intensity-modulated probe light. Thus, a proper sensor element and wavelength for fiber-optic Raman sensing is determined. Further, the temperature error for long sensor fibers is theoretically analyzed |
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