Investigation of pump-wavelength dependence of terahertz-wave parametric oscillator based on LiNbO3
Investigation of pump-wavelength dependence of terahertz-wave parametric oscillator based on LiNbO3
复制标题
基于LiNbO3的太赫兹波参量振荡器的泵浦波长依赖性研究
DOI：
10.1088/1674-1056/18/7/037
复制
发表时间：
2009
影响因子：
1.7
通讯作者：
姚建全
中科院分区：
文献类型：
--
作者：
孙博;刘劲松;李恩帮;姚建全
This paper investigates the performances of terahertz-wave parametric oscillators (TPOs) based on the LiNbO3 crystal at different pump wavelengths. The calculated results show that TPO characteristics, including the frequency tuning range, the THz-wave gain and the stability of THz-wave output direction based on the Si-prism coupler, can be significantly improved by using a short-wavelength pump. It also demonstrates that a long-wavelength-pump allows the employment of a short TPO cavity due to an enlarged phase-matching angle, that is, an increased angular separation between the pump and oscillated Stokes beams under the THz-wave generation at a specific frequency. The study provides an useful guide and a theoretical basis for the further improvement of TPO systems.
