Single-channel to multi-channel upgrade of 10-Gb/s transmission systems by Raman amplification

Author

Hansen, P.B. ; Eskildsen, L. ; Grubb, S.G. ; Stentz, A.J. ; Strasser, T.A. ; Judkins, J. ; DeMarco, J.J. ; Pedrazzani, R. ; DiGiovanni, D.J.

Author_Institution

Bell Labs., Lucent Technol., Holmdel, NJ, USA

Volume

2

fYear

1996

fDate

19-19 Sept. 1996

Firstpage

147

Abstract

We have demonstrated an upgrade technique, which allows one to upgrade a single-channel 10 Gb/s transmission system to a four-channel WDM system with a total capacity of 40 Gb/s without changes to the transmission fiber. Raman gain from 1-W of diode pump power increases the power budget by 7.4 dB corresponding to sensitivities of -45.1 dBm or better for all channels. The pump wavelength of 1453 nm was selected for optimum performance in the 1550 nm to 1560 nm range. The transmitter consists of one DFB laser (in the case of single-channel measurements) or four DFB lasers (for the WDM measurements), which are then combined in a fiber directional coupler.

Keywords

Raman lasers; channel capacity; distributed feedback lasers; fibre lasers; optical directional couplers; optical fibre communication; optical fibre couplers; optical transmitters; wavelength division multiplexing; 1 W; 10 Gbit/s; 10-Gb/s transmission systems; 1453 nm; 1550 to 1560 nm; 40 Gbit/s; DFB laser transmitter; Raman amplification; Raman gain; WDM measurements; diode pump power; fiber directional coupler; four-channel WDM system; optimum performance; power budget; pump wavelength; sensitivities; single-channel to multi-channel upgrade; total capacity; transmission fiber;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication, 1996. ECOC '96. 22nd European Conference on

Conference_Location

Oslo, Norway

Print_ISBN

82-423-0418-1

Type

conf

Filename

715713