Journal article

Performance of WDM fiber-radio network using distributed Raman amplifier

Z Li, A Nirmalathas, M Bakaul, YJ Wen, L Cheng, J Chen, C Lu, S Aditya

IEEE Photonics Technology Letters | Published : 2006

Abstract

We investigate the impairment induced by stimulated Brillouin scattering (SBS) effect and noise characteristics of wavelength-division-multiplexing fiber-radio network assisted by distributed Raman amplifier (DRA) or erbium-doped fiber amplifier. Experimental results indicate that forward-pumping DRA can increase the link optical output power limited by SBS effect in downstream transmission and backward-pumping DRA can improve signal-to-noise ratio in upstream transmission, which is verified by binary phase-shift keying transmission experiments. Moreover, our experimental results show that DRA does not introduce additional impairment from interchannel crosstalk due to cross-phase modulation ..

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