论文信息 - Advanced Modulation Formats in 40 Gbit/s Optical Communication Systems with 80 km Fibre Spans

Advanced Modulation Formats in 40 Gbit/s Optical Communication Systems with 80 km Fibre Spans

Abstract NRZ, duobinary, RZ, CS-RZ and SSB-RZ modulation formats are evaluated numerically at a bit rate of 40 Gbit/s for single-channel and WDM systems using long fibre spans of 80 km SMF + DCF or SMF + IDF × 2. For the single-channel system, conventional RZ with narrow pulses is found to be optimum, whereas CS-RZ performs the best for the WDM system. Using SMF + IDF×2 fibre span results in significant longer transmission distance due to reduced span loss.

Torger Tokle | Palle Jeppesen | Christophe Peucheret

[1] D. Penninckx. Enhanced-phase-shaped binary transmission , 2000 .

[2] Hoon Kim,et al. Optical duobinary transmission system featuring improved receiver sensitivity and reduced optical bandwidth , 2002, IEEE Photonics Technology Letters.

[3] J. A. Lyle,et al. Technique for evaluating system performance using Q in numerical simulations exhibiting intersymbol interference , 1994 .

[4] Lars Gruner-Nielsen,et al. Optimisation of dispersion compensating fibres for cabled long-haul applications , 2000 .

[5] A. Price,et al. Reduced bandwidth optical digital intensity modulation with improved chromatic dispersion tolerance , 1995 .

[6] A. Sano,et al. 320 Gbit/s (8/spl times/40 Gbit/s) WDM transmission over 367 km with 120 km repeater spacing using carrier-suppressed return-to-zero format , 1999 .