Computing large signal distortions and bit-error ratios in DPSK transmission systems
E.T. Spiller
W.L. Kath
R.O. Moore
C.J. McKinstrie
Dept. of Eng. Sci. & Appl. Math., Northwestern Univ., Evanston, IL, USA;
This paper appears in: Photonics Technology Letters, IEEE
Publication Date: May 2005
Volume: 17,
Issue: 5
On page(s): 1022-1024
ISSN: 1041-1135
INSPEC Accession Number: 8408928
Digital Object Identifier: 10.1109/LPT.2005.845656
Current Version Published: 2005-04-25
Abstract
We demonstrate the application of importance sampling (IS) to the simulation of a soliton-based differential phase-shift-keyed optical transmission system. We use an approximation to the pulse evolution given by perturbation theory and optimized with calculus of variations to guide full numerical Monte Carlo simulations employing IS. The method not only directly determines the bit-error ratio, but also predicts the manner in which large signal distortions occur.
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