Thermoelectrically cooled, repetitively pulsed Fe : ZnSe laser

We report the investigation of a repetitively pulsed laser based on a Fe : ZnSe crystal, cooled to a temperature of 195 K by two thermoelectric modules with a maximum cooling power of 34 W. Two pulsed synchronised Er : YAG lasers, operating in the free-lasing regime, are used for pumping. It is show...

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Bibliographic Details
Published inQuantum electronics (Woodbury, N.Y.) Vol. 49; no. 7; pp. 641 - 648
Main Authors Zakharov, N.G., Zakhryapa, A.V., Kozlovsky, V.I., Korostelin, Yu.V., Skasyrsky, Ya.K., Frolov, M.P., Chuvatkin, R.S., Yutkin, I.M.
Format Journal Article
LanguageEnglish
Published Bristol Kvantovaya Elektronika, Turpion Ltd and IOP Publishing 01.07.2019
IOP Publishing
Subjects
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CRYSTALS
Fe : ZnSe laser
II - VI crystals
Laser applications
Laser cooling
Lasers
Lasing
mid-IR range
NEODYMIUM LASERS
Pulsed lasers
PULSES
PUMPING
repetitively pulsed regime
Semiconductor lasers
Short pulses
SPECTRA
thermoelectric cooling
WAVELENGTHS
YAG lasers
ZINC SELENIDES
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Summary:We report the investigation of a repetitively pulsed laser based on a Fe : ZnSe crystal, cooled to a temperature of 195 K by two thermoelectric modules with a maximum cooling power of 34 W. Two pulsed synchronised Er : YAG lasers, operating in the free-lasing regime, are used for pumping. It is shown that the average laser power in a series of short pulses may exceed 20 W. An average power of 3.1 W is attained in the stationary temperature regime. The lasing spectrum is centred at a wavelength of 4.38 μm, and the total divergence angle is 5 mrad.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL16913