Abstract

The characteristic properties of critically and noncritically phase-matched second-harmonic generation in crystalline lithium triborate (LiB₃O₅,LBO) grown in our laboratory are investigated. Angle-tuned critically phase-matched second-harmonic generation of near-infrared radiation is reported. Temperature-tuned noncritically phase-matched second-harmonic generation from 1.025 to 1.253 μm was achieved in the temperature range 190° to −3°C. Spectrum-tuned noncritical phase matching at room temperature is also achieved at 1.215 μm. Large angular, temperature, and spectral acceptance bandwidths are obtained. The details of the LBO crystal growth process are also discussed.

© 1992 Optical Society of America

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