Tunable two-mode Cr2+ : ZnSe laser with a frequency-noise spectral density of 0.03 Hz Hz-1/2

Autor: Gubin, Mikhail A, Kireev, A N, Kozlovskii, Vladimir I, Korostelin, Yurii V, Pnev, A B, Podmar, Yu P, Tyurikov, D A, Frolov, M P, Shelestov, D A, Shelkovnikov, Aleksandr S
Zdroj: Quantum Electronics; June 2012, Vol. 42 Issue: 6 p509-513, 5p
Abstrakt: An optically pumped cw laser on a Cr2+ : ZnSe crystal with a tunable (in the range of 2.3 -- 2 .6 mm) wavelength, operating with generation of two axial modes, has been developed. It is shown that the minimum laser frequency-noise spectral density does not exceed 0.03 Hz Hz-1/2. Application of this laser in problems of Doppler and Doppler-free spectroscopy makes it possible to detect spectral absorption lines of gases with sensitivities of 5 x 10-12 and 2 x 10-10 cm-1, respectively (averaging time t = 1 s). Having stabilised this laser with respect to the Doppler-free resonances of saturated dispersion of methane molecule, one can obtain a short-term frequency stability of 10-15 - 10-16 (t = 1 s).
Databáze: Supplemental Index