We report what is to our knowledge the first demonstration of a pump-enhanced singly resonant continuous-wave optical parametric oscillator. The nonlinear material used was lithium triborate cut for noncritical phase matching along the z axis, and the device was pumped by a single-frequency argon-ion laser. The oscillation threshold was ~1.0 W at 514.5 nm. For 3.4 W of pump power, we obtained single-frequency output powers of 500 mW in the nonresonant wave, which we temperature tuned over 14 nm.
© 1994 Optical Society of America
Original Manuscript: May 16, 1994
Published: November 1, 1994
Gordon Robertson, Miles J. Padgett, and Malcolm H. Dunn, "Continuous-wave singly resonant pump-enhanced type II LiB3O5 optical parametric oscillator," Opt. Lett. 19, 1735-1737 (1994)