Journal
OPTICS EXPRESS
Volume 15, Issue 11, Pages 7038-7046Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.15.007038
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We report a continuous-wave self-Raman laser based on diode-pumped Nd: GdVO4 giving first-Stokes output at 1173 nm and intracavity frequency-doubled output at 586.5 nm. A maximum cw output power at 1173 nm of 2 W was obtained for diode pump powers of 22 W and a maximum cw power at 586 nm of 678 mW with 16.3 W pump power. Infrared and yellow powers were limited by thermal lensing in the gain medium and parasitic oscillations of weak Nd3+ transitions. Quasi-cw operation at 50% duty-cycle reduced the thermal load in the laser/Raman crystal, allowing cavity stability to be obtained near maximum available pump power (25.7 W) for which the maximum quasi-cw yellow output power was 1.88 W. (C) 2007 Optical Society of America.
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