We demonstrate a diode-pumped cw Raman laser in H<sub>2</sub> with photon-conversion efficiency of (66±8)%. Pumped by an injection-locked diode laser at 792 nm, the Stokes laser produces a peak output power of ~16mW at 1180 nm. Accompanying the high Stokes power are deviations from the existing theory, which are believed to be caused by the thermal-lensing effect of the Raman gas.
© 2001 Optical Society of America
(140.3410) Lasers and laser optics : Laser resonators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3550) Lasers and laser optics : Lasers, Raman
(140.3600) Lasers and laser optics : Lasers, tunable
(140.6810) Lasers and laser optics : Thermal effects
Lei S. Meng, Peter A. Roos, Kevin S. Repasky, and John L. Carlsten, "High-conversion-efficiency, diode-pumped continuous-wave Raman laser," Opt. Lett. 26, 426-428 (2001)