| 摘要 |
Device for spatially resolved measurement of temperature and/or strain by Brillouin scattering, with at least one laser light source (1) capable of generating a laser radiation, an optical fiber (5) used for the measurement, into which the laser radiation can be coupled in and from which Brillouin signals generated by Brillouin scattering can be coupled out, sensor means capable of detecting the coupled-out Brillouin signals, evaluation means capable of determining spatially resolved from the detected Brillouin signals the temperature and/or strain at least of sections of the optical fiber (5), at least one polarization beam splitter (10, 11) capable of splitting the coupled-out Brillouin - signals into two components (12, 13) having mutually different polarizations, and at least one optical coupler (16, 17) capable of admixing a laser radiation to the Brillouin signal. |
