Efficient 100 mW Cr(2+): ZnSe laser pumped by a 1.9 µm laser diode

Albrecht, D.; Mond, M.; Heumann, E.; Huber, G.; Kück, S.; Levchenko, V.I.; Yakimovich, N.; Shcherbitsky, V.G.; Kisel, V.E.; Kuleshov, N.V.; Rattunde, Marcel; Schmitz, J.; Kiefer, R.; Wagner, J.

doi:10.1109/CLEO.2002.1033508

2002

Conference Paper

Abstract

An efficient continuous-wave Cr2+:ZnSe laser pumped by high power GaSb laser diodes was presented. The beam of the laser diode was collimated by a spherical and cylindrical lens and focussed by a 45 mm achromatic lens into Cr2+:ZnSe crystal. Output power of 105 mW and slope efficiency of 35% were obtained with respect to the absorbed pump power. The laser threshold pump power varied between 45 mW and 77 mW and the variation depended on mirror transmission.