Widely tunable yellow-green lasers based on the self-frequency-doubling material Yb:YAB

Abstract

We report widely tunable infrared and self-frequency-doubled operation in ytterbium-doped yttrium aluminum borate (Yb:YAB). In the infrared, tuning has been obtained between 1016 and 1090 nm and also near 1125 nm. A tuning range at the 1-W level of 55 nm has been obtained. As a self-frequency-doubled laser, green output powers of 65 mW at 510 nm and over 450 mW at 530 nm have been demonstrated with a maximum diode-to-green conversion efficiency of 5%. Yb:YAB has been shown to cover the wavelengths of the copper-vapor (510 nm), argon-ion (514 nm), doubled Nd:YAG (532 nm), green HeNe (543 nm), and the doubled $\mathrm{Yb}:{\mathrm{Sr}}_5({\mathrm{VO}}_4{)}_3\mathrm{F}$ laser in the visible (∼565 nm).

© 2003 Optical Society of America

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