High conversion efficiency single-pass second harmonic generation in a zinc-diffused periodically poled lithium niobate waveguide

被引：35
|
作者：
Ming, L [1 ]
Gawith, CBE
Gallo, K
O'Connor, MV
Emmerson, GD
Smith, PGR
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
[2] Stratophase Ltd, Abbey Enterprise Ctr, Romsey SO51 9AQ, Hants, England
来源：
OPTICS EXPRESS | 2005年 / 13卷 / 13期
关键词：
D O I：
10.1364/OPEX.13.004862
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a modified technique for the fabrication of zinc-diffused channel waveguides using z-cut electric-field periodically poled LiNbO3. Unlike previous work, the diffusion was carried out using metallic zinc at atmospheric pressure. By optimizing the thermal diffusion parameters, channel waveguides that preserve the existing periodically poled domain structures, support both TE and TM modes, and enhance photorefractive damage resistance were obtained. Nonlinear characterisation of the channel waveguides was investigated via second harmonic generation of a 1552nm laser with a maximum conversion efficiency of 59% W(-1)cm(-2) at 14.6 degrees C. Using a pulsed source a second harmonic conversion efficiency of 81% was achieved. (C) 2005 Optical Society of America
引用
收藏
页码：4862 / 4868
页数：7
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