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has been cited by the following article:

• TITLE: Simulation Analysis of Balance Detection Technique in Coherent Optical Receiver

  AUTHORS: Piaokun Zhang, Zhongwei Tan, Zhichao Ding, Lijun Guo

  KEYWORDS: Balance Heterodyne Detection, 90? Optical Mixer, Signal to Noise Ratio, The Numerical Simulation

  JOURNAL NAME: Optics and Photonics Journal, Vol.11 No.8, August 3, 2021

  ABSTRACT: This paper introduces the working principle of the balanced heterodyne detection system, establishes the corresponding mathematical model, deduces the signal to noise ratio (SNR) formula of the balanced heterodyne detection. By comparing balance heterodyne detection with general coherent detection with MATLAB numerical simulation, the superiority of balance heterodyne detection system is proved theoretically. Finally, the simulation models of ordinary heterodyne detection, balance detection and double balance detection system are built by OptiSystem. The simulation results are consistent with the conclusions derived from the mathematical analysis, which provides a new method for the research of weak laser detection technology.