Author Affiliations
Abstract
1 State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 101408, China
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 transmission. The fabricated CWDM ROSA module, whose size is , 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 for 25 GBaud four-level pulse amplitude modulation (PAM-4) transmission with an average input optical power of 5 dBm.
Photonics Research
2019, 7(7): 07000722
中国科学技术大学光学与光学工程系光子实验室, 安徽 合肥 230026
通过波导-双腔-量子点耦合系统的哈密顿量和系统算符的海森堡运动 方程推导出系统的输入-输出关系。利用格林函数理论,解析地定义了微腔和波导之间的耦合速率。并在此基础上求解系统算符的 运动方程,推导出整个系统透射谱的解析形式。数值计算了整个系统透射谱与双腔之间的距离(其导致双腔与 波导的耦合速率之间有一相位因子)和失谐因子之间的关系。研究发现透射谱紧密依赖于双腔距离和失谐因子。 这种结构在量子信息、量子计算及光开关方面有着潜在的应用前景。
量子光学 透射谱解析解 格林函数方法 波导-双腔-量子点系统 quantum optics analytic transmission spectra Green function theory waveguide-two-cavities-quantum-dot system
