Experimental and Simulation Analysis of Two-Tone and Three-Tone Photodetector Linearity Characterizing Systems  

作　　者：费嘉瑞 黄永清 刘悠欣 刘凯 段晓峰 任晓敏 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876

出　　处：《Chinese Physics Letters》2017年第11期110-113,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 61574019,61674018 and 61674020;the Fund of State Key Laboratory of Information Photonics and Optical Communications;the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No 20130005130001

摘　　要：Two measurement techniques are investigated to characterize photodetector linearity. A model for the two-tone and three-tone photodetector systems is developed to thoroughly investigate the influences of setup components on the measurement results. We demonstrate that small bias shifts from the quadrature point of the modulator will induce deviation into measurement results of the two-tone system, and the simulation results correspond well to experimental and calculation results.Two measurement techniques are investigated to characterize photodetector linearity. A model for the two-tone and three-tone photodetector systems is developed to thoroughly investigate the influences of setup components on the measurement results. We demonstrate that small bias shifts from the quadrature point of the modulator will induce deviation into measurement results of the two-tone system, and the simulation results correspond well to experimental and calculation results.

关 键 词：OIP Experimental and Simulation Analysis of Two-Tone and Three-Tone Photodetector Linearity Characterizing Systems IMD dBm 

分 类 号：TN15[电子电信—物理电子学]