Intracavity-frequency-doubled picosecond optical parametric oscillator based on noncritically phase-matched LiB/sub 3/O/sub 5/

Summary form only given. The Ti:sapphire-pumped optical parametric oscillator (OPO) based on noncritically phase-matched LiB/sub 3/O/sub 5/ (LBO) is a versatile source of high-repetition-rate picosecond pulses for the near-infrared. It is capable of providing signal and idler output pulses with durations of 1-2 ps over the continuous wavelength range 1-2.5 /spl mu/m at hundreds of milliwatts of average power. We have now extended the spectral coverage of the device to the visible region by intracavity frequency-doubling the OPO signal pulses to provide transform-limited 840-fs pulses in the 584-771-nm range, with average powers as high as 320 mW.