We compare the relative merits of the new nonlinear materials CsLiB6O10 and β-BaB2O4 for use as gain media in a singly or doubly resonant pulsed optical parametric oscillator pumped by a Q-switched Nd:YAG laser with various parameters. Angle tuning or a wide range can be theoretically stimulated under type I and type II(1) critical phase matching for CsLiB6O10 crystal. The tunable range is 237–2775 nm; the range was extended to the ultraviolet wavelength by fifth-harmonic generation in CsLiB6O10. A comparison of the tunable ranges, resonant thresholds, and conversion efficiencies of CsLiB6O10 and β-BaB2O4 is obtained by computer simulation. We verify that CsLiB6O10 is an excellent ultraviolet crystal.
© 2003 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.4780) Lasers and laser optics : Optical resonators
(190.0190) Nonlinear optics : Nonlinear optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
Li Wang and Yanbin Men, "Comparison Study of CsLiB6O10 and β-BaB2O4 as Nonlinear Media for Optical Parametric Oscillators," Appl. Opt. 42, 2720-2723 (2003)