In this paper, we demonstrate a domain inversion crystal structure to study the cascaded three-wave mixing process in a two peak Stark-chirped rapid adiabatic passage. We have achieved efficient wavelength conversion, which can be performed in intuitive order and counterintuitive order. The requirement of crystal is reduced and the flexibility of structure design is improved. When the conversion wavelength is fixed, increasing the coupling coefficient between the two peaks can reduce the intensity of the intermediate wavelength while maintaining high conversion efficiency. Compared with the cascaded wavelength conversion process based on stimulated Raman rapid adiabatic passage, the two-peak modulated Stark-chirped rapid adiabatic passage has a larger convertible wavelength bandwidth. This scheme provides a theoretical basis for obtaining mid-infrared laser source via flexible crystal structure.

在本文中，我们展示了一种域反转晶体结构，以研究两个峰值 Stark-chirp 快速绝热通道中的级联三波混合过程。我们实现了高效的波长转换，可以按直观顺序和反直观顺序进行。降低了对晶体的要求，提高了结构设计的灵活性。当转换波长固定时，增加两个峰之间的耦合系数可以在保持高转换效率的同时降低中间波长的强度。与基于受激拉曼快速绝热通道的级联波长转换过程相比，双峰调制的 Stark-chirp 快速绝热通道具有更大的可转换波长带宽。