[OPTICAL REVIEW Vol. 12, No. 2 (2005) 101-104]
© 2005 The Optical Society of Japan

Self-Frequency-Doubling Ytterbium Lasers

Judith M. DAWES, Peter DEKKER, Phillip BURNS and James A. PIPER

Centre for Lasers and Applications, Department of Physics, Macquarie University, Balaclava Rd, Sydney 2109, Australia

(Received October 1, 2004; Accepted December 9, 2004)

Ytterbium-doped self-frequency-doubling lasers offer high efficiency, tunable, visible and near-infrared, cw and pulsed operation from compact devices. We review the performance of ytterbium-doped yttrium aluminium borate (Yb:YAB) self-frequency-doubling lasers. Because of the detailed dynamics of the interaction of the nonlinear pulse shaping process for mode-locking or for Q-switching self-frequency-doubled lasers, we observe pulse lengthening in each process when frequency doubling is optimised, with high average output power. However, for continuous wave operation, the self-frequency doubling process may be optimised to give highly efficient, robust, widely-tunable output in the visible as well as fundamental output in the infrared.

Key words: novel lasers, frequency conversion, ytterbium lasers, diode-pumped solid-state lasers, visible lasers, infrared lasers