Characterize and optimize the four-wave mixing in dual-interferometer coupled silicon microrings

Wu Chao¹, Liu Yingwen¹, Gu Xiaowen², Xue Shichuan¹, Yu Xinxin², Kong Yuechan², Qiang Xiaogang¹, Wu Junjie¹, Zhu Zhihong¹, Xu Ping^{1, 3, ‡}

The CW pump FWM experiment. (a) The normalized conversion efficiency of both the experiment and calculation for the 12 resonators. (b) and (c) The normalized conversion efficiency versus Q int , p / Q ext , p and Q int , i / Q ext , i , respectively.