N. G. Zakharov, A. V. Zakhryapa, V. I. Kozlovsky, Yu. V. Korostelin, Ya. K. Skasyrsky, M. P. Frolov, R. S. Chuvatkin, I. M. Yutkin, “Thermoelectrically cooled, repetitively pulsed Fe : ZnSe laser”, Kvantovaya Elektronika, 2019, Volume 49, Number 7,Pages <nobr>641

This article is cited in 2 papers

Lasers

Thermoelectrically cooled, repetitively pulsed Fe : ZnSe laser

N. G. Zakharov^a, A. V. Zakhryapa^a, V. I. Kozlovsky^bc, Yu. V. Korostelin^b, Ya. K. Skasyrsky^b, M. P. Frolov^b, R. S. Chuvatkin^a, I. M. Yutkin^a

^a Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
^b P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
^c National Engineering Physics Institute "MEPhI", Moscow

Abstract: 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 freelasing 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.

Keywords: mid-IR range, II – VI crystals, Fe : ZnSe laser, thermoelectric cooling, repetitively pulsed regime.

Received: 20.11.2018
Revised: 23.01.2019