Title :
Performance of NRZ-versus RZ-WDM transmission around zero dispersion wavelength over dispersion-shifted fiber
Author :
Aisawa, Shigeki ; Takachio, Noboru ; Iwashita, Katsushi
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
fDate :
4/1/1998 12:00:00 AM
Abstract :
Performances of nonreturn-to-zero (NRZ) and return-to-zero (RZ) wavelength-division-multiplexing (WDM) signals employing unequal channel spacing around zero-dispersion wavelength over dispersion-shifted fiber are compared by numerical simulation. In multirepeater WDM transmission systems employing installed dispersion shifted fiber, NRZ signals offer superior performance to RZ signals except in special cases.
Keywords :
optical fibre communication; optical fibre dispersion; optical fibre theory; optical noise; optical repeaters; wavelength division multiplexing; NRZ signals; NRZ-WDM transmission; RZ-WDM transmission; d return-to-zero; dispersion-shifted fiber; dispersion-shifted fibre; installed dispersion shifted fiber; multirepeater WDM transmission systems; nonreturn-to-zero; numerical simulation; unequal channel spacing; wavelength-division-multiplexing; zero dispersion wavelength; zero-dispersion wavelength; Band pass filters; Fiber nonlinear optics; Filtering theory; Optical attenuators; Optical fiber communication; Optical fiber dispersion; Optical fiber filters; Optical receivers; Optical signal processing; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
