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, ‡}

(a) Schematic of the dual-interferometer coupled microring. (b) The transmission spectra of the dual-interferometer coupled microring for the in-through side and add-drop side.