title: Directly diode-pumped tunable continuous-wave room-temperature Cr4+:YAG laser.
abstract: We report what is to our knowledge the first directly diode-pumped tunable (over 120 nm) continuous-wave Cr(4+): YAG laser, operating near 1.5 microm . At room temperature the laser delivered as much as 200 mW of power at 4 W of absorbed pump power. We also report observation of slow laser output degradation and bleaching in highly concentrated crystals, which we suggest is due to a photorefractive phenomenon.
authors: Institut für Photonik, Technische Universität Wien, Gusshausstrasse 27/378, A-1040 Vienna, Austria
authors: I T
authors: IT
authors: Sorokina
authors: S
authors: S
authors: Naumov
authors: E
authors: E
authors: Sorokin
authors: E
authors: E
authors: Wintner
authors: A V
authors: AV
authors: Shestakov