We compare the relative merits of the new nonlinear materials β-barium borate and lithium triborate for use as gain media in singly resonant pulsed optical parametric oscillators pumped by either excimer lasers or frequency-upconverted diode-laser-pumped solid-state lasers. Lithium triborate is the material of choice when one requires low-pump-energy threshold devices (<3 mJ), as in the case of miniature all-solid-state systems based on diode-laser-pumped solid-state lasers, whereas β-barium borate is superior in converting the high-energy pump pulses (>100 mJ) that are associated with excimer lasers.
© 1993 Optical Society of America
Original Manuscript: November 4, 1992
Revised Manuscript: April 6, 1993
Published: September 1, 1993
Dominic E. Withers, Gordon Robertson, Angus J. Henderson, Yan Tang, Yong Cui, Wilson Sibbett, Bruce D. Sinclair, and Malcolm H. Dunn, "Comparison of lithium triborate and β-barium borate as nonlinear media for optical parametric oscillators," J. Opt. Soc. Am. B 10, 1737-1743 (1993)