Lin Jipeng, Pask Helen M
MQ Photonics, Department of Physics and Astronomy, Macquarie University, NSW 2109, Australia.
Opt Express. 2012 Jul 2;20(14):15180-5. doi: 10.1364/OE.20.015180.
We report quasi-continuous-wave, cascaded Nd:GdVO(4) self-Raman lasers based on a secondary Raman transition at 382 cm(-1) for which the Raman gain was estimated to be 0.7 cm/GW. Laser output was obtained in the near-infrared at 1108 nm, 1156 nm and 1227 nm. By incorporating intracavity sum-frequency generation (SFG) or second-harmonic generation (SHG), high power output at four discrete visible wavelengths could be selected, specifically 3.4 W at 542 nm, 2.8 W at 554 nm, 1.4 W at 566 nm and 0.8 W at 577 nm, with corresponding diode-to-visible optical conversion efficiencies of 11.7%, 9.7%, 4.8% and 2.7% respectively.
我们报道了基于382 cm⁻¹处二次拉曼跃迁的准连续波级联Nd:GdVO₄自拉曼激光器,其拉曼增益估计为0.7 cm/GW。在1108 nm、1156 nm和1227 nm的近红外波段获得了激光输出。通过腔内和频产生(SFG)或二次谐波产生(SHG),可以选择四个离散可见波长的高功率输出,具体为542 nm处3.4 W、554 nm处2.8 W、566 nm处1.4 W和577 nm处0.8 W,对应的二极管到可见光的光学转换效率分别为11.7%、9.7%、4.8%和2.7%。