Abstract
Ultraviolet second-harmonic generation in first-order periodically poled is presented. Using a high-voltage multipulse application method, we fabricated a first-order nonlinear grating with a period of and depth of over 10-mm interaction length in a 1-mm-thick substrate. In a single-pass configuration, continuous-wave 30-mW UV light at 362.5 nm was generated for a fundamental power of 522 mW, corresponding to a normalized conversion efficiency of .
© 2003 Optical Society of America
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