Current Optics and Photonics

Optical Society of Korea (한국광학회)
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Optimal Matching Approach for Cascaded Encoder in Remote Coding Scheme-based Passive Optical Network Monitoring System

  • Zhang, Xuan (College of Physics and Electronic Engineering, Sichuan Normal University) ;
  • Guo, Hao (College of Optoelectronic Information, University of Electronic Science and Technology of China) ;
  • Jia, Xinhong (College of Physics and Electronic Engineering, Sichuan Normal University) ;
  • Liao, Qinghua (College of Science, Nanchang University)
  • Received : 2018.06.23
  • Accepted : 2018.08.13
  • Published : 2018.10.25
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Abstract

An optimal matching approach is proposed to maximally ensure the output power uniformity of the cascaded encoder in the passive optical network (PON) monitoring system based on a remote coding scheme. The calculation results show that the optimum arrangement can effectively reduce the difference of the total insertion loss in comparison to the random arrangement (i.e., 0.07 dB vs 2.67 dB in the cascaded encoder with 16 output ports). The proposed approach realizes the optimum configuration for the $1{\times}2$ optical splitters used without adding any extra components. The test results of the fabricated cascaded encoder with 32 output ports prove the feasibility of the proposed approach.

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References

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