Abstract

Flash-lamp style optical pump cavity techniques for side pumping small-diameter laser rods with large-area stacked diode-laser arrays are applied. With a cusp-shaped reflector as a nonimaging concentrator, the light is coupled from the 4.5 cm × 1 cm emitting surface of a microchannel-cooled 660-W cw stacked array to a 4-mm-diameter Nd:YAG rod. With a rod length of 70 mm, 170-W cw output power is reached with an optical efficiency of 26%. The design is insensitive to mechanical distortions and allows for a compact, rugged, close-coupled arrangement without the need for further coupling optics.

© 1995 Optical Society of America

300-W cw diode-laser side-pumped Nd:YAG rod laser

D. Golla, S. Knoke, W. Schöne, G. Ernst, M. Bode, A. Tünnermann, and H. Welling
Opt. Lett. 20(10) 1148-1150 (1995)

Continuous-wave TEM₀₀-mode 26.5-W-output virtual-point-source diode-array-pumped Nd:YAG laser

N. Uehara, K. Nakahara, and K. Ueda
Opt. Lett. 20(16) 1707-1709 (1995)

Amplitude and frequency stability of a diode-pumped Nd:YAG laser operating at a single-frequency continuous-wave output power of 20 W

I. Freitag, D. Golla, S. Knoke, W. Schöne, H. Zellmer, A. Tünnermann, and H. Welling
Opt. Lett. 20(5) 462-464 (1995)

Diode-pumped 100-W green Nd:YAG rod laser

Jonghoon Yi, Hee-Jong Moon, and Jongmin Lee
Appl. Opt. 43(18) 3732-3737 (2004)

28% electrical-efficiency operation of a diode-side-pumped Nd:YAG rod laser

Shuichi Fujikawa, Keisuke Furuta, and Koji Yasui
Opt. Lett. 26(9) 602-604 (2001)