Information Capacity of Direct Detection Optical Transmission Systems

Antonio Mecozzi, Mark Shtaif

Research output: Contribution to journalArticlepeer-review

Abstract

We show that the spectral efficiency of a direct detection transmission system is at most 1 b/s/Hz less than the spectral efficiency of a system employing coherent detection with the same modulation format. Correspondingly, the capacity per complex degree of freedom in systems using direct detection is lower by at most 1 bit.

Original languageEnglish
Pages (from-to)689-694
Number of pages6
JournalJournal of Lightwave Technology
Volume36
Issue number3
DOIs
StatePublished - 1 Feb 2018

Keywords

  • Channel capacity
  • modulation
  • optical detection

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