Optical signal to noise ratio monitoring using variable phase difference phase portrait with software synchronization

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13 Citations (Scopus)


In this paper, a novel optical signal to noise ratio (OSNR) monitoring method using 2-dimension (2-D) phase portrait is proposed and demonstrated, which is generated by using a single low-speed sampling channel with software synchronization technique. Moreover, variable phase difference is proposed to generate the X-Y pairs, which increases the tolerance of synchronization accuracy significantly. This method is a cost effective solution with simple system setup.
Original languageEnglish
Pages (from-to)11284-11289
Number of pages6
JournalOptics Express
Issue number9
Publication statusPublished - 4 May 2015
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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