Abstract

We report temperature phase-matched second-harmonic generation of 1.064-μm radiation in Ti-indiffused waveguides in MgO-doped LiNbO₃ substrates. Noncritical phase matching of the TE₂ mode was achieved at 102–106°C. Owing to the high-temperature operation and the low photorefractivity of the waveguide, it was possible to generate 22-mW average-power 532-nm output. No evidence of photorefractive scattering was observed during 5 h of operation at 3-mW output.

© 1986 Optical Society of America

Frequency doubling in Ti:MgO:LiNbO₃ channel waveguides

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J. Opt. Soc. Am. B 5(2) 292-299 (1988)

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Efficient green-light generation by proton-exchanged periodically poled MgO:LiNbO₃ ridge waveguide

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