Continuously tunable diode-pumped UV-blue laser source

Continuous tunability and high efficiency are obtained from an intracavity-doubled optical parametric oscillator pumped by a frequency-doubled diode-pumped Nd:YAG laser. The optical parametric oscillator is tunable from 760 to 1040 nm with 30% efficiency, giving 380-520-nm tunability after intracavity doubling with 40% efficiency.