A broadly tunable picosecond singly resonant optical parametric oscillator based on a Brewster-angled crystal of lithium triborate in a ring cavity is described. The optical parametric oscillator is synchronously pumped by an all-solid-state frequency-doubled additive-pulse mode-locked Nd:YLF laser pumped by laser diodes. Continuous noncritically phase-matched tuning is demonstrated from 839 to 1392 nm by use of one set of optics. The oscillator has a threshold of 47 mW of average pump power and, with a pump depletion of 70%, can deliver a tunable output of as high as 88 mW.
© 1994 Optical Society of America
Original Manuscript: September 2, 1993
Published: January 15, 1994
A. Robertson and A. I. Ferguson, "Synchronously pumped all-solid-state lithium triborate optical parametric oscillator in a ring configuration," Opt. Lett. 19, 117-119 (1994)