Title :
A consideration on chromatic and polarization dispersions in single-mode fibers for large capacity transmission systems
Author :
Ohashi, Masaharu ; Tsubokawa, Makoto ; Kawase, Masaaki
Author_Institution :
NTT Transmission Syst. Lab., Ibaraki, Japan
Abstract :
The transmission limitation due to total dispersion, including chromatic and polarization is investigated for the continuous-phase frequency-shift keying (CPFSK) transmission system. Signal amplitude degradation is theoretically estimated for nondispersion-shifted (NDS), dispersion-shifted (DS), and heavy-metal fluoride glass (HMF) fibers using demodulation schemes such as polarization compensation, optical heterodyne detection, and intermediate frequency (IF) demodulation. The maximum transmission speed of the DS fiber is about 150 Gb/s for a transmission distance of 200 km and a polarization dispersion of 2 ps when D=0 ps/km/nm. For the NDS fiber, the transmission speed is about 6 Gb/s. The maximum transmission distance and speed for the HMF fiber are determined according to the total dispersion to be about 4500 km and 70 Gb/s, respectively
Keywords :
demodulation; frequency shift keying; light polarisation; optical dispersion; optical fibres; optical links; 150 Gbit/s; 2 ps; 200 km; 4500 km; 6 Gbit/s; 70 Gbit/s; CPFSK; chromatic dispersion; continuous-phase frequency-shift keying; dispersion shifted fibre; heavy metal fluoride glass fibres; intermediate frequency demodulation; large capacity transmission systems; nondispersion shifted fibre; optical heterodyne detection; polarization compensation; polarization dispersions; signal amplitude degradation; single-mode fibers; Amplitude estimation; Chromatic dispersion; Degradation; Demodulation; Estimation theory; Frequency estimation; Frequency shift keying; Glass; Optical fiber polarization; Optical mixing;
Conference_Titel :
Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-87942-632-2
DOI :
10.1109/GLOCOM.1990.116746
