A high power cryogenic cooling Tm-doped (2%) GdVO4 laser double-end-pumped by fiber-coupled-diode with the center wavelength of 804.5 nm at 21 Celsius degree is reported. The highest continuous-wave (CW) power of 2.35 W at 1903 nm is attained at pump power of 24 W. The slope efficiency is 12.5% and the threshold is 3.2 W. Single- and double-end-pumped types are investigated.
© 2005 Chinese Optics Letters
Yufeng Li, Baoquan Yao, and Yuezhu Wang, "Diode-pumped CW Tm:GdVO4 laser at 1.9 um," Chin. Opt. Lett. 4, 175-176 (2006)