High-Performance Heterogeneously Integrated Coherent Optical Sub-Assembly Enabling 130 Gbaud DP-QPSK Transmission. - Xun Lei; Quan Cao; Shichao Zhu; Bolan Liu; Chan Liu; Xi Guo; Guidong Deng; Lu-luzi Lu; Xuejiao Wang; Yinxue Lv; Jiao Chai; Yun Cao (ECOC, 2025)