Abstract

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

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