LiNbO_3波导中切伦科夫辐射型的倍频

SHG Cherenkov Radiation in LiNbO_3 Waveguide

对条波导中切伦科夫辐射型的倍频作了简要分析．着重分析了产生切伦科夫辐射倍频的条件．并从实验上实现了条波导中１．０６μｍ红外光到０．５３μｍ绿光的倍频辐射，转换效率为的０．９％，对应的输入光功率为１０ｍｗ．

In this paper, the optical second harmonic generation (SHG ) of cherenkov scheme in channel waveguide was analized and the condition of waveguide for Cherenkov type SHG was discussed in detail. We obtained the SHG power at wavelength of 0. 53 μm by coupling 1. 06 μm fundamental power into the guide. The conversion efficiency is about 0. 9% corresponding to the 10 mW input power.