M. A. Gubin, A. N. Kireev, V. I. Kozlovsky, Yu. V. Korostelin, A. B. Pnev, Yu. P. Podmar'kov, D. A. Tyurikov, M. P. Frolov, D. A. Shelestov, A. S. Shelkovnikov, “Tunable two-mode Cr2+ : ZnSe laser with a frequency-noise spectral density of 0.03 Hz Hz-1/2”, Kvantovaya Elektronika, 2012, Volume 42, Number 6,Pages 509

This article is cited in 13 papers

Lasers

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

M. A. Gubin^a, A. N. Kireev^a, V. I. Kozlovsky^a, Yu. V. Korostelin^a, A. B. Pnev^b, Yu. P. Podmar'kov^ac, D. A. Tyurikov^a, M. P. Frolov^ac, D. A. Shelestov^b, A. S. Shelkovnikov^a

^a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b Scientific and Educational Center "Photonics and IR Technique", N. E. Bauman Moscow State Technical University, Moscow
^c Moscow Institute of Physics and Technology (State University)

Abstract: 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 × 10^-12 and 2 × 10^-10 cm^-1, respectively (averaging time τ = 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 (τ = 1 s).

PACS: 42.55.Rz, 42.60.By, 42.62.Eh, 42.62.Fi

Received: 17.02.2012
Revised: 19.03.2012