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Effect of poling conditions on second harmonic generation in fused silica
H.Takebe, P.G.Kazansky and P.St.J.Russell
Optoelectronics Research Centre, University of Southampton, UK
Department of Materials Science and Technology, Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816, Japan
A systematic study of the effects of poling time and applied voltage on second harmonic generation (SHG) in thermally poled silica glass reveals that the SH signal is proportional to the square of the applied voltage, and that the speed of the poling process is inversely proportional to the applied voltage. Prior treatment of the samples is found to affect the poling process, and the optimum poling conditions are observed to depend on the poling atmosphere. The mechanism of thermal poling is discussed in the light of these new results.
Optics Letters (1996) Vol.21(7) pp.468-470
Copyright University of Southampton 2006