Abstract
A laser system that is based on second-harmonic generation of a broad area laser diode and provides 23.2 mW of diffraction-limited light with narrow bandwidth is described. It is tunable from 487.4 to . The broad area laser diode is frequency stabilized in an external cavity that yields 800 mW of diffraction-limited light. This infrared light is converted into the visible by use of a 1 cm periodically poled bulk crystal with a measured single-pass conversion efficiency of up to 3.6%∕W × cm.
© 2007 Optical Society of America
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