Performance of coherent optical PSK systems with Costas loop in receiver for nonlinear second-order PLL model

I. B. Djordjevic, M. C. Stefanovic, G. T. Djordjevic

Research output: Contribution to journalArticle

Abstract

Using the nonlinear second-order PLL (phase-locked loop) model, the authors consider the performance of the coherent optical PSK (phase-shift keying) systems with Costas loop in receiver, for the first time. The shot noise of the corresponding PIN photodiodes is described through the signal-to-noise ratio in the loop bandwidth, and the laser phase noise is described through the normalized frequency fluctuations instead of the phase ones. The analysis is carried out for both homodyne and heterodyne types of receivers. The theory and results presented in this article can be applied to the analysis and optimization of performance in regions where the linear PLL model is not sufficient.

Original languageEnglish (US)
Pages (from-to)243-248
Number of pages6
JournalInternational Journal of Modelling and Simulation
Volume21
Issue number4
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

Keywords

  • Coherent optical systems
  • Costas loop
  • Error probability
  • Nonlinear PLL model

ASJC Scopus subject areas

  • Modeling and Simulation
  • Mechanics of Materials
  • Hardware and Architecture
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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