Abstract
In this paper the development and optimization process of single frequency, diode pumped Nd:YVO<sub>4</sub>/YVO<sub>4</sub>/KTP microchip laser operating at 532nm is presented. A birefringent filter formed by beam displacer (undoped YVO<sub>4</sub> crystal) and KTP crystal was used to obtain single mode operation. As a final result of optimization miniature, monolithic laser resonator was elaborated. The laser generated Gaussian beam with quality better than M<sup>2</sup><1.2 and maximum single frequency output power at the level of 160mW @ 532 nm. The optical to optical efficiency (532nm to 808nm) was at the level of 16,8% at the maximum single frequency output power.
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