A ray-tracing code has been developed, and the design parameters of the laser pump head were analyzed in terms of crystal diameter, doping concentration, and optical cavity diameter. According to the numerical analysis, we fabricated an efficient diode-pumped Nd:YAG laser and experimentally obtained 500-W output power. The output power is close to the numerically calculated output power of approximately 450 W and corresponds to an optical-to-optical conversion efficiency of 46.7% and an optical slope efficiency of 49%.
© 2002 Optical Society of America
Original Manuscript: April 18, 2001
Revised Manuscript: October 12, 2001
Published: February 20, 2002
Sungman Lee, Sun Kook Kim, Mijeong Yun, Hyun Su Kim, Byung Heon Cha, and Hee-Jong Moon, "Design and fabrication of a diode-side-pumped Nd:YAG laser with a diffusive optical cavity for 500-W output power," Appl. Opt. 41, 1089-1094 (2002)