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Conferences > ASSL > 1999 > WB > WB18

Stabilization of a diode-pumped intracavity frequency doubled microlaser at 473nm

Volker Gäbler, Baining Liu, Hans J. Eichler, Zhiguo Zhang, Panming Fu, and Frank Peuker

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Abstract

We present the stabilization of an intracavity frequency doubled blue Nd:YAG laser by solving the so-called Blue Problem. Using a single stripe 1 W / 808 nm laser diode for longitudinal end-pumping of a half-monolithic Nd:YAG/KNbO3 473 nm microlaser, a quarter-wave plate (QWP) was inserted into the cavity to suppress the large amplitude noise. An adjustment of the QWP with a rotational angle of 45° referred to the extra-ordinary axis of the KNbO3 type II crystal, resulted in a complete suppression of the noise in the blue frequency doubled laser emission.

© 1999 Optical Society of America

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