Device for generating excitation radiation for self-calibrating fiber optic Raman sensors, measuring device for detecting the temperature of a measurement object and Raman sensor arrangement

摘要

Device for generating excitation radiation for self-calibrating fiber optic Raman sensors with a laser source (4) for emitting laser pulses of a predetermined first wavelength, characterized in that the laser source (4) has an optical fiber (5) for coupling in the laser pulses with a predetermined first wavelength (A1) is assigned, in which, using the stimulated Raman scattering, a Raman emission line with a second wavelength (λ2) is created which corresponds to the Stokes line (S1) generated by the laser pulses of the predetermined first wavelength (λ1), the Raman emission line with the second wavelength (λ2) an anti-Stokes line (aS2) is generated, which lies at the predetermined first wavelength (λ1) of the laser pulses of the laser source (4), and that a device (6) at the output of the optical fiber (5) is arranged for separating the wavelengths, the radiation emerging from the optical fiber (5) in pulses with the predetermined first wavelength (A1) and pulse e divides with the second wavelength (λ2) of the induced Stokes line (S1).