高维集成光量子技术

陈志宇, 陆亮亮

High⁃dimensional integrated quantum photonic technology

Zhiyu Chen, Liangliang Lu

图2 简并与非简并的二阶和三阶非线性过程的原理图：(a)简并与非简并的四波混频过程， (b)简并与非简并的参量下转换过程

Fig.2 Schematic diagram of degenerate and non?degenerate second? and third?order nonlinear processes:(a) degenerate and non?degenerate four?wave mixing process，(b) degenerate and non?degenerate parameter down?conversion process