Title :
Reduction of fiber four-wave mixing influence using frequency modulation in multichannel IM/DD transmission
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
Abstract :
A novel technique is proposed to reduce fiber four-wave mixing (FWM) influence on system performance in multichannel intensity-modulated/direct detection (IM/DD) transmissions. The optical frequency is modulated such that the spectrum of the beat component between the selected signal and FWM lights is spread and the effect on the beat component is reduced by filtering in the baseband stage. A numerical simulation shows that the FWM influence is reduced to less than -6 dB over conventional systems using this technique.<>
Keywords :
frequency modulation; multiwave mixing; optical fibres; optical links; optical modulation; baseband stage; beat component spectrum; fiber four-wave mixing influence; filtering; frequency modulation; intensity modulated direct detection transmissions; multichannel IM/DD transmission; numerical simulation; Fiber nonlinear optics; Four-wave mixing; Frequency modulation; Nonlinear optics; Optical devices; Optical fiber filters; Optical filters; Optical mixing; Optical modulation; System performance;
Journal_Title :
Photonics Technology Letters, IEEE
