BLUE-LIGHT GENERATION BY FREQUENCY DOUBLING OF A LASER DIODE IN A PERIODICALLY DOMAIN-INVERTED LITAO3 WAVE-GUIDE

被引：30
|
作者：
YAMAMOTO, K
MIZUUCHI, K
机构：
[1] Optical Devices Research Laboratory, Components and Devices Research Center, Matsushita Electric Industrial Co., Ltd.
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 05期
关键词：
D O I：
10.1109/68.136477
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report quasi-phase matched second-harmonic generation by frequency doubling of a laser diode in LiTaO3 having a first-order periodically domain-inverted region and proton-exchanged channel waveguide. A deep domain-inverted region and a low-loss channel waveguide with strong confinement are formed by using proton-exchange and quick heat treatment techniques. Utilizing this structure, a high normalized conversion efficiency of 157%/W is obtained with a Ti:Al2O3 laser. Using a temperature-controlled laser diode and AR coating on the input and output facet of the waveguide, the laser diode maintains single-mode oscillation without any mode hopping. Consequently, 1.1 mW of blue light is obtained at a wavelength of 436.5 nm.
引用
收藏
页码：435 / 437
页数：3
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