Abstract

We propose a highly efficient quasi-cw Nd:YAG rod laser with a novel side-pumping design that uses microlens-free diode stacks. We demonstrate 320-W output power with 28% electrical-to-optical efficiency, which is, to our knowledge, the highest efficiency reported for diode-pumped solid-state lasers.

© 2001 Optical Society of America

Highly efficient continuous-wave operation of a Nd:YAG rod laser that is side pumped by p-polarized diode laser bars

Ranganathan Kandasamy, Sundar Raghavachari, Puskar Misra, and Sthanu Nathan. T. P
Appl. Opt. 43(31) 5855-5859 (2004)

208-W TEM₀₀ operation of a diode-pumped Nd:YAG rod laser

Y. Hirano, Y. Koyata, S. Yamamoto, K. Kasahara, and T. Tajime
Opt. Lett. 24(10) 679-681 (1999)

Efficient diode side-pumping configuration of a Nd:YAG rod laser with a diffusive cavity

Tetsuo Kojima and Koji Yasui
Appl. Opt. 36(21) 4981-4984 (1997)

Efficient diffusive reflector-type diode side-pumped Nd:YAG rod laser with an optical slope efficiency of 55%

Hee-Jong Moon, Jonghoon Yi, Jaemin Han, Byungheon Cha, and Jongmin Lee
Appl. Opt. 38(9) 1772-1776 (1999)

120-W continuous-wave diode-pumped Tm:YAG laser

K. S. Lai, P. B. Phua, R. F. Wu, Y. L. Lim, Ernest Lau, S. W. Toh, B. T. Toh, and Audrey Chng
Opt. Lett. 25(21) 1591-1593 (2000)