Title

In-Service Signal Quality Monitoring And Multi-Impairment Discrimination Based On Asynchronous Amplitude Histogram Evaluation For Nrz-Dpsk Systems

Keywords

Asynchronous sampling; Optical performance monitoring; Q-factor estimation

Abstract

A novel in-service signal quality monitoring technique for nonreturn-to-zero differential phase-shift keying signals using asynchronous amplitude histogram evaluation has been demonstrated. As a result of phase-to-amplitude modulation, there are three Gaussian distributions in the amplitude histogram. The widths of the Gaussian distributions are related to the amount of amplified spontaneous emission, while the separations between the Gaussian distributions increase monotonically with fiber dispersion. The amount of dispersion and optical signal-to-noise ratio can, thus, be directly extracted and discriminated from the amplitude histogram. © 2005 IEEE.

Publication Date

9-1-2005

Publication Title

IEEE Photonics Technology Letters

Volume

17

Issue

9

Number of Pages

1998-2000

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/LPT.2005.853234

Socpus ID

27144468614 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/27144468614

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