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Comparison of lithium triborate and β-barium borate as nonlinear media for optical parametric oscillators

1993; Optica Publishing Group; Volume: 10; Issue: 9 Linguagem: Inglês

10.1364/josab.10.001737

1520-8540

Dominic E. Withers, Gordon Robertson, Angus Henderson, Yan Tang, Yong Cui, Wilson Sibbett, Bruce Sinclair, Malcolm H. Dunn,

Advanced Fiber Laser Technologies

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.