Accurate modeling of optical multiplexer/demultiplexer concatenation in transparent multiwavelength optical networks

Author

Roudas, I. ; Antoniades, N. ; Otani, T. ; Stern, T.E. ; Wagner, R.E. ; Chowdhury, D.Q.

Author_Institution

Telcordia Technol., Red Bank, NJ, USA

Volume

20

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

921

Lastpage

936

Abstract

This paper presents an accurate theoretical model for the study of concatenation of optical multiplexers/demultiplexers (MUXs/DMUXs) in transparent multiwavelength optical networks. The model is based on a semianalytical technique for the evaluation of the error probability of the network topology. The error-probability evaluation takes into account arbitrary pulse shapes, arbitrary optical MUX/DMUX, and electronic low-pass filter transfer functions, and non-Gaussian photocurrent statistics at the output of the direct-detection receiver. To illustrate the model, the cascadability of arrayed waveguide grating (AWG) routers in a transparent network element chain is studied. The performance of the actual network is compared to the performance of a reference network with ideal optical MUXs/DMUXs. The optical power penalty at an error probability of 10^-9 is calculated as a function of the number of cascaded AWG routers, the bandwidth of AWG routers, and the laser carrier frequency offset from the channel´s nominal frequency

Keywords

demultiplexing equipment; diffraction gratings; error statistics; multiplexing equipment; optical arrays; optical fibre networks; optical receivers; optical transfer function; optical waveguides; statistical analysis; telecommunication network routing; AWG routers; accurate modeling; arbitrary pulse shapes; arrayed waveguide grating routers; cascaded AWG routers; direct-detection receiver; electronic low-pass filter transfer functions; error probability; error-probability evaluation; laser carrier frequency offset; network topology; nonGaussian photocurrent statistics; optical MUX/DMUX; optical multiplexer/demultiplexer concatenation; optical power penalty; semianalytical technique; transparent multiwavelength optical networks; transparent network element; Arrayed waveguide gratings; Error probability; Frequency; Multiplexing; Network topology; Optical fiber networks; Optical filters; Optical pulse shaping; Optical receivers; Optical waveguides;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2002.1018803

Filename

1018803