Title :
An analysis of the improvements in OSNR from distributed Raman amplifiers using modern transmission fibres
Author :
Fludger, C. ; Maroney, A. ; Jolley, N. ; Mears, R.
Author_Institution :
Harlow labs., Nortel Networks, Harlow, UK
Abstract :
We present measurements of the Raman efficiency spectra for recent transmission fibres and model the improvement in DWDM system performance using distributed Raman amplification. For 5 spans of 25 dB fibre loss and 1 dB of connector loss, we predict 4.5-6.5 dB improvement in optical signal to noise ratio (OSNR) when using a 500 mW pump, a variation of up to 2 dB depending on fibre type.
Keywords :
Raman lasers; laser noise; optical fiber amplifiers; optical fiber communication; optical fiber couplers; optical fiber losses; optical pumping; stimulated Raman scattering; wavelength division multiplexing; DWDM system performance; OSNR; Raman efficiency spectra; connector loss; distributed Raman amplification; distributed Raman amplifiers; fibre loss; fibre type; mW pump; modern transmission fibres; optical signal to noise ratio; Distributed amplifiers; Fiber lasers; Optical fiber polarization; Optical fiber testing; Optical noise; Power lasers; Power measurement; Pump lasers; Signal to noise ratio; Stimulated emission;
Conference_Titel :
Optical Fiber Communication Conference, 2000
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-630-3
DOI :
10.1109/OFC.2000.869428
