Title :
Comparison of NRZ- and RZ-modulation format for 40-Gb/s TDM standard-fiber systems
Author :
Breuer, D. ; Petermann, K.
Author_Institution :
Fachgebiet Hochfrequenztech., Tech. Univ. Berlin, Germany
fDate :
3/1/1997 12:00:00 AM
Abstract :
Nonreturn-to-zero (NRZ) and return-to-zero (RZ) signal transmission in dispersion-managed high-speed time-division multiplexed (TDM) systems operating at 1.55 μm over the already installed standard-fiber network are compared by numerical simulations. It is shown that for upgrading the existing network to 40 Gb/s, the RZ-modulation format is superior compared to conventional NRZ-modulation. Standard fiber transmission distances of about 1200 km and 400 km are shown to be feasible within the RZ- and NRZ-format, respectively.
Keywords :
optical fibre dispersion; optical fibre networks; optical modulation; telecommunication network management; time division multiplexing; 1.55 mum; 40 Gbit/s; Gb/s TDM standard-fiber systems; NRZ-modulation format; RZ-modulation format; TDM; dispersion-managed high-speed time-division multiplexed system; installed standard-fiber network; nonreturn-to-zero signal transmission; numerical simulations; return-to-zero signal transmission; standard fiber transmission distances; Chirp modulation; Low pass filters; Optical fiber amplifiers; Optical fiber communication; Optical filters; Optical modulation; Optical receivers; Optical signal processing; Pulse width modulation; Time division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
