We report on a significant improvement in cw laser performance of the disordered Yb:CNGG crystal. Very efficient cw laser operation is demonstrated at room temperature with a 3.5 mm thick crystal end pumped by a diode laser, generating an output power of 5.15 W with an optical-to-optical efficiency of 46%, whereas the slope efficiency amounts to 80%.
© 2012 Optical Society of America
Lasers and Laser Optics
Original Manuscript: February 13, 2012
Revised Manuscript: April 21, 2012
Manuscript Accepted: April 23, 2012
Published: June 12, 2012
Zhichao Zhou, Xueping Tian, Qibiao Dai, Wenjuan Han, Jiayin Huang, Junhai Liu, and Huaijin Zhang, "Improvement in continuous-wave laser performance of disordered Yb:CNGG crystal," Appl. Opt. 51, 4042-4046 (2012)