Second-harmonic generation in a direct-bonded periodically poled LiNbO_3 buried waveguide
1999; Optica Publishing Group; Volume: 24; Issue: 7 Linguagem: Inglês
10.1364/ol.24.000481
ISSN1539-4794
AutoresCorin B. E. Gawith, D.P. Shepherd, J.A. Abernethy, D.C. Hanna, G.W. Ross, Peter G. R. Smith,
Tópico(s)Solid State Laser Technologies
ResumoWe report the fabrication of a 12??m-thick periodically poled LiNbO3 planar waveguide buried in LiTaO3 by direct bonding of precision-polished surfaces. Frequency doubling of the 1064-nm output of a cw diode-pumped Nd:YAG laser was performed in a 5.5-mm-long device with a 6.50??m-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-1 conversion efficiency.
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