Field demonstration of coherent WDM with a fibre amplifier repeater, for transparent optical network applications

Author

Brain, M.C. ; Creaner, M.J. ; Steele, R.C. ; Spirit, D. ; Walker, N.G. ; Walker, G.R. ; Mellis, J. ; Al-Chalabi, S. ; Hale, W.B. ; Sturgess, I.C.C. ; Rutherford, M. ; Trivett, D.

Author_Institution

British Telecom Res. Lab., Ipswich, UK

fYear

1990

fDate

2-5 Dec 1990

Firstpage

768

Abstract

A series of field experiments performed with two-wavelength transmissions at 622 Mb/s over 200-km of installed single-mode fiber using a diode-pumped erbium-doped fiber amplifier repeater are described. Both differential phase-shift keying (DPSK) modulation and frequency-shift keying (FSK) modulation were employed, along with two implementations of automated endless polarization control. In a further field experiment, a power budget of 64 dB was demonstrated in the form of repeaterless DPSK transmission at 622 Mb/s over 264 km of installed fiber. The use of such a large power budget to accommodate the sharing of power between many wavelength channels and the accumulation of spontaneous emission noise through cascaded optical amplifier repeaters is discussed

Keywords

frequency division multiplexing; frequency shift keying; optical links; optical modulation; phase shift keying; repeaters; 200 km; 264 km; 622 Mbit/s; DPSK; FSK; automated endless polarization control; coherent WDM; differential phase-shift keying; fibre amplifier repeater; field demonstration; frequency-shift keying; Differential quadrature phase shift keying; Diodes; Frequency modulation; Frequency shift keying; Optical fiber amplifiers; Optical fiber polarization; Optical noise; Phase modulation; Repeaters; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE

Conference_Location

San Diego, CA

Print_ISBN

0-87942-632-2

Type

conf

DOI

10.1109/GLOCOM.1990.116611

Filename

116611