415 km unrepeatered transmission of 25 Gbit/s NRZ with +26.5 dBm launch, clock pre-chirp, Raman amplification, FEC and dispersion compensation

Author

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

Author_Institution

Alcatel Submarine Networks, London, UK

fYear

1996

fDate

35173

Firstpage

42614

Lastpage

42619

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 pre-amplifier 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. With the addition of forward error correction, this is increased to 415 km

Keywords

forward error correction; optical fibre communication; optical fibre dispersion; optical pumping; optical receivers; preamplifiers; stimulated Brillouin scattering; 2.5 kbit/s; 3.5 dB; 392 km; 415 km; 980 nm; FEC; NRZ data; Raman amplification; Raman gain; clock prechirp; dispersion compensation; forward error correction; mixed fibre system; noise figure; pumped preamplifier; sensitivity; stimulated Brillouin scattering suppression; system length; unrepeatered transmission;

fLanguage

English

Publisher

iet

Conference_Titel

High Speed and Long Distance Optical Transmission, IEE Colloquium on

Conference_Location

Birmingham

Type

conf

DOI

10.1049/ic:19960559

Filename

543177