Soliton interaction penalty reduction by receiver filtering

Author

Bakhshi, Bamdad ; Andrekson, Peter A. ; Karlsson, Magnus ; Bertilsson, Kent

Author_Institution

Dept. of Optoelectron. & Electr. Meas., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

10

Issue

7

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1042

Lastpage

1044

Abstract

We present the first detailed numerical study of the impact of receiver low-pass filtering in soliton interaction-limited communication systems. We propagate 40-Gb/s pseudorandom bit sequences (PRBS´s) of 2/sup 8/-1 solitons up to one soliton collision distance (z/sub c/) and optimize the filter bandwidth to minimize the interaction induced eye opening penalty. The distance at 0.5-dB penalty is increased over 40% through filtering. The penalty is essentially pulsewidth independent when considering distances normalized by z/sub c/. We also show that PRBS´s of at least 2/sup 8/-1 solitons are required to accurately simulate random data.

Keywords

low-pass filters; optical fibre communication; optical fibre dispersion; optical receivers; optical solitons; 40 Gbit/s; Gb/s pseudorandom bit sequences; detailed numerical study; filter bandwidth optimisation; induced eye opening penalty; pulsewidth independent; random data; receiver filtering; receiver low-pass filtering; soliton collision distance; soliton interaction penalty reduction; soliton interaction-limited communication systems; Bandwidth; Filtering; Low pass filters; Optical fiber communication; Optical fiber losses; Optical fiber polarization; Optical filters; Pulse amplifiers; Solitons; Space vector pulse width modulation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.681311

Filename

681311