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

Journal Article · Sat Jun 30 00:00:00 EDT 2012 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2012V042N06ABEH014838· OSTI ID:22043944

Gubin, Mikhail A; Kireev, A N; Kozlovskii, Vladimir I; Korostelin, Yurii V; Pnev, A B; Podmar'kov, Yu P; Tyurikov, D A; Frolov, M P; Shelestov, D A; Shelkovnikov, Aleksandr S

An optically pumped cw laser on a Cr{sup 2+} : 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{sup -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 Multiplication-Sign 10{sup -12} and 2 Multiplication-Sign 10{sup -10} cm{sup -1}, respectively (averaging time {tau} = 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{sup -15} - 10{sup -16} ({tau} = 1 s).

• OSTI ID: 22043944
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 42, Issue 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
CHROMIUM IONS
CRYSTALS
DISPERSIONS
LASER RADIATION
METHANE
MOLECULES
NOISE
SENSITIVITY
SPECTRAL DENSITY
SPECTROSCOPY
STABILITY
ZINC SELENIDES