标题：Second-harmonic generation in swift O5+ ion irradiated KTiOPO4 ridge waveguide
作者：Cheng, Yazhou ;Zhou, Shengqiang
作者机构：[Cheng, Yazhou ] School of Physics, State Key Laboratory of Crystal Materials, Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shan 更多
会议名称：Optical Manipulation and Structured Materials Conference 2019
会议日期：April 22, 2019 - April 26, 2019
来源：Proceedings of SPIE - The International Society for Optical Engineering
摘要：We report on the fabrication of ridge waveguide in potassium titanyl phosphate (KTP) crystal by using swift O5+ ion irradiation and precise diamond blade dicing. An end-face coupling system was arranged to realize second harmonic generation (SHG) through KTP ridge waveguide: 1064-nm TE-polarization wave →532-nm TM-polarization wave, resulting in a conversion efficiency of 25.4%. This result implies potential applications for O5+ ion irradiated ridge KTP waveguide to be an efficient frequency-doubling device.
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