Open AccessOptical performance monitoring with tunable narrowband optical filtering
Author(s) -
S.D. Dods,
Don Hewitt,
Peter M. Farrell,
Kerry Hinton
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.008927
Subject(s) - optics , narrowband , optical filter , optical path , optical power , dispersion (optics) , optical performance monitoring , filter (signal processing) , chirp , signal processing , optical communication , signal (programming language) , spectral density , optical amplifier , computer science , physics , telecommunications , wavelength division multiplexing , laser , wavelength , radar , computer vision , programming language
We propose an optical performance monitoring scheme that combines a tunable narrowband optical filter with asynchronous histograms to create density plots that represent probability maps of both optical power and frequency. Simulations are used to investigate the technique, and show that measurements at transmitters and filters can directly detect optical chirp. The effects of several optical impairments are also shown, comprising misaligned filters in the optical path, dispersion, nonlinear effects and optical signal to noise ratio. The density plots are affected differently by each of these impairments.