Mathematical modelling and BER analysis of 100 Gbs NOLM demultiplexer using a soliton-shaped pulse for control and data

Author

Cheung, C.Y. ; Ghassemlooy, Z. ; Swift, G.

Author_Institution

Sch. of Eng., Sheffield Hallam Univ., UK

Volume

147

Issue

4

fYear

2000

fDate

8/1/2000 12:00:00 AM

Firstpage

245

Lastpage

250

Abstract

A mathematical model for the nonlinear optical loop mirror (NOLM) demultiplexer operating with a soliton-shaped pulse for both control and data, is presented. The model can be used: to optimise system parameters (control pulse width, walk-off time etc.) for maximising peak transmittance of the switching profile, to calculate the switching profile width, and to estimate the switching profile through a new convolution approach. The simulation results are verified by numerically solving the nonlinear Schrodinger equation. The NOLM model is then integrated into an optical receiver model for a bit error rate (BER) analysis. Simulation results show that BER, timing jitter noise and cross-talk are strongly dependent on the walk-off time between control and signal pulses in NOLM demultiplexing. The dependence of the BER on walk-off time agrees qualitatively with experimental results reported elsewhere

Keywords

Schrodinger equation; convolution; demultiplexing equipment; mirrors; optical crosstalk; optical solitons; timing jitter; BER analysis; Gbs NOLM demultiplexer; NOLM demultiplexing; bit error rate analysis; control pulse width; convolution approach; mathematical model; mathematical modelling; nonlinear Schrodinger equation; nonlinear optical loop mirror demultiplexer; optical receiver model; peak transmittance; soliton-shaped pulse; switching profile; switching profile width; system parameter optimisation; walk-off time;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:20000491

Filename

871122