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Second-harmonic generation in a direct-bonded periodically-poled-LiNbO3 buried waveguide

By C.B.E. Gawith, D.P. Shepherd, J.A. Abernethy, D.C. Hanna, G.W. Ross and P.G.R. Smith

Abstract

We report the fabrication of a 12µm-thick periodically poled LiNbO3 planar waveguide buried in LiTaO3 by direct bonding of precision-polished surfaces. Frequency doubling of the 1064nm output of a cw diode-pumped Nd:YAG laser was performed in a 5.5mm-long device with a 6.50µm-period grating at an elevated temperature of 174°C. The resultant green second-harmonic output exhibited fundamental-spatial-mode characteristics at a 4.3% /W conversion efficiency

Topics: QC, TK
Year: 1999
OAI identifier: oai:eprints.soton.ac.uk:77829
Provided by: e-Prints Soton

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