Unrepeatered transmission over 415 km at 2.5 Gbit/s with Raman gain and +26.5 dBm launch power

Author

Guild, K.M. ; Webb, S.M. ; Sian, S.S.

Author_Institution

Alcatel Submarine Networks, London, UK

Volume

32

Issue

22

fYear

1996

fDate

10/24/1996 12:00:00 AM

Firstpage

2087

Lastpage

2088

Abstract

2.5 Gbit/s transmission is demonstrated over a mixed fibre system without using remote optically pumped amplifiers (ROPAs). The use of NRZ data with clock pre-chirp, stimulated Brillouin scattering (SBS) suppression and dispersion compensation enables a +26.5 dBm signal to be launched into fibre. A 980 nm pumped preamplifier with a 3.5 dB noise figure and additional Raman gain at the receiver realises a system length of 392 km with an effective sensitivity of -45.2 dBm. When the system fibre length is increased to 415 km, an error rate is demonstrated which if forward error correction (FEC) were used would give error free transmission

Keywords

digital communication; optical fibre communication; optical fibre dispersion; optical links; 2.5 Gbit/s; 3.5 dB; 415 km; 980 nm; NRZ data; Raman gain; clock pre-chirp; dispersion compensation; effective sensitivity; forward error correction; launch power; mixed fibre system; optical fibres; pumped preamplifier; stimulated Brillouin scattering suppression; system length; unrepeatered transmission;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19961404

Filename

543832