Bias-drift-free Mach–Zehnder modulators based on a heterogeneous silicon and lithium niobate platform  

作　　者：SHIHAO SUN MINGBO HE MENGYUE XU SHENGQIAN GAO ZIYAN CHEN XIAN ZHANG ZILIANG RUAN XIONG WU LIDAN ZHOU LIN LIU CHAO LU CHANGJIAN GUO LIU LIU SIYUAN YU XINLUN CAI 

机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510000,China [2]Centre for Optical and Electromagnetic Research,Guangdong Provincial Key Laboratory of Optical Information Materials and Technology,South China Academy of Advanced Optoelectronics,South China Normal University,Higher-Education Mega-Center,Guangzhou,China [3]Department of Electronic and Information Engineering,Photonics Research Centre,The Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong,China [4]State Key Laboratory for Modern Optical Instrumentation,Centre for Optical and Electromagnetic Research,Zhejiang Provincial Key Laboratory for Sensing Technologies,Zijingang Campus,Zhejiang University,Hangzhou 310058,China

出　　处：《Photonics Research》2020年第12期1958-1963,共6页光子学研究（英文版）

基　　金：National Key Research and Development Program of China(2019YFB1803900);National Natural Science Foundation of China(11690031,11761131001);Guangzhou Science and Technology Program(201707010096);Key RD Program of Guangdong Province(2018B030329001);Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(2017BT01X121);Innovation Fund of WNLO(2018WNLOKF010);Key-Area Research and Development Program of Guangdong Province(2019B121204003);Project of Key Laboratory of Radar Imaging and Microwave Photonics,Ministry of Education(RIMP2019003);Opening funds from State Key Laboratory of Optoelectronic Materials and Technologies of China,Sun Yat-sen University(OEMT-2018-KF-04)。

摘　　要：Optical modulators have been and will continue to be essential devices for energy-and cost-efficient optical communication networks.Heterogeneous silicon and lithium niobate modulators have demonstrated promising performances of low optical loss,low drive voltage,and large modulation bandwidth.However,DC bias drift is a major drawback of optical modulators using lithium niobate as the active electro-optic material.Here,we demonstrate high-speed and bias-drift-free Mach–Zehnder modulators based on the heterogeneous silicon and lithium niobate platform.The devices combine stable thermo-optic DC biases in silicon and ultra-fast electro-optic modulation in lithium niobate,and exhibit a low insertion loss of 1.8 d B,a low half-wave voltage of 3 V,an electro-optic modulation bandwidth of at least 70 GHz,and modulation data rates up to 128 Gb/s.

关 键 词：modulators LITHIUM NIOBATE 

分 类 号：TN761[电子电信—电路与系统]