We describe the development of Nd:YVO4 lasers with continuous-wave emission at 1.342 mum; they contain either one or two crystals which are longitudinally pumped by fiber-coupled diode laser arrays. With a single crystal, the output power is 7.3 W,,while with the twin crystal configuration the power reaches 12 W. The best slope efficiency is 40% and the output beam divergence is about two times the diffraction limit. The influence of the Nd concentration, of the pump spot-size and of the resonator configuration have been experimentally studied. Data on the thermally induced lens are also reported and discussed.
High-power diffraction-limited Nd : YVO4 continuous-wave lasers at 1.34 mu m
DI LIETO, ALBERTO;MINGUZZI, PAOLO;
2003-01-01
Abstract
We describe the development of Nd:YVO4 lasers with continuous-wave emission at 1.342 mum; they contain either one or two crystals which are longitudinally pumped by fiber-coupled diode laser arrays. With a single crystal, the output power is 7.3 W,,while with the twin crystal configuration the power reaches 12 W. The best slope efficiency is 40% and the output beam divergence is about two times the diffraction limit. The influence of the Nd concentration, of the pump spot-size and of the resonator configuration have been experimentally studied. Data on the thermally induced lens are also reported and discussed.File in questo prodotto:
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