首页 > 论文 > Chinese Optics Letters > 19卷 > 7期(pp:07)

Robust modal phase matching in subwavelength x-cut and z-cut lithium niobate thin-film waveguide [Early Posting]

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
分享:

摘要

We use the nonlinear coupled-mode theory to theoretically investigate Second-harmonic generation (SHG) in subwavelength x-cut and z-cut lithium niobate (LN) thin-film waveguide and derive the analytical formula to calculate SHG efficiency in x-cut and z-cut LN thin-film waveguide explicitly. Under the scheme of optimal modal phase matching (MPM), two types of LN thin-film can achieve highly efficient frequency doubling of 1064nm laser with a comparable conversion efficiency due to very consistent modal field distribution of the fundamental wave and second harmonic wave and efficient overlap between them. Such a robust MPM for high-efficiency SHG in both subwavelength x-cut and z-cut LN thin-film waveguides are further confirmed in a broad wavelength range, which might facilitate design and application of micro-nano nonlinear optical devices based on subwavelength LN thin-film

广告组1 - 空间光调制器+DMD
补充资料

作者单位:

    South China University of Technology
    South China University of Technology
    South China University of Technology
    Guangdong full-spectra Laser Technology Co., Ltd
    South China University of Technology

引用该论文

Peng Lingzhi,Hong Lihong,Chen Baoqin,He Peng,Li Zhiyuan. Robust modal phase matching in subwavelength x-cut and z-cut lithium niobate thin-film waveguide[J].Chinese Optics Letters,2021,19(7):07.