Low-cost hybrid integrated 4 × 25 GBaud PAM-4CWDM ROSA with a PLC-based arrayed waveguide grating de-multiplexer

作     者：Lei Liu Limin Chang Yingxin Kuang Zezheng Li Yang Liu Huan Guan Manqing Tan Yude Yu Zhiyong Li 

作者机构：State Key Laboratory of Integrated OptoelectronicsInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China College of Materials Science and Opto-Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing 101408China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2019年第7卷第7期

页      面：37-42页

核心收录：

学科分类：070207[理学-光学] 07[理学] 0702[理学-物理学] 

基　　金：National Key Research and Development Plan of China(2016YFB0402502) National Natural Science Foundation of China(NSFC)(61804148) 

主　　题：CWDM ROSA division optical compact facet pulse dB 

摘      要：We demonstrate a low-cost hybrid integrated and compact 100 GBaud four-lane coarse wavelength division multiplexing (CWDM) receiver optical sub-assembly (ROSA) based on an arrayed waveguide grating de-multiplexer in the O band. To achieve the horizontal light coupling between the planar light-wave circuit (PLC) based arrayed waveguide grating de-multiplexer and photodetector array, a 42°polished facet is applied for total reflection.A flexible printed circuit with high-frequency coplanar waveguides is used for a power supply of trans-impedance amplifier and signal *** fabricated CWDM ROSA module, whose size is 18mm×22mm×6mm, shows a 3 dB bandwidth of 21.2,18.4,19.6,and 19.3 GHz,respectively,in each lane. The overall symbol error rates are at a magnitude of 10^-7 for 25 GBaud four-level pulse amplitude modulation (PAM-4) transmission with an average input optical power of 5dBm.