Title :
Record spectral efficiencies and transmission capacities based on N×43 Gbit/s systems
Author :
Idler, Wilfried ; Antona, Jean-Christophe
Author_Institution :
Alcatel R&I, Stuttgart, Germany
Abstract :
Spectral efficiency in excess of 0.8 bit/s/Hz has become reality with 43 Gbit/s NRZ based DWDM systems. We highlight the basic approaches to reach such efficiencies through the record transmission capacities of 10 Tbit/s over 300km TeraLight™ fibre using an optical bandwidth of 8 THz offered by the C-and L-band, and of 3.2 Tb/s in C band over 900km fibre. The key approaches for the high spectral efficiency are vestigial sideband (VSB) filtering, polarization multiplexing and 43 Gbit/s NRZ modulation format. The key elements for transmission are: TeraLight™ fibre, dispersion management, OSNR control by a well defined combination of erbium-doped and Raman fibre amplification and finally forward-error-correction coding.
Keywords :
Raman lasers; forward error correction; optical fibre amplifiers; optical fibre dispersion; optical fibre networks; optical modulation; telecommunication network management; wavelength division multiplexing; 10 Tbit/s; 3.2 Tbit/s; 300 km; 43 Gbit/s; 900 km; C-band; Gbit/s NRZ based DWDM systems; Gbit/s systems; L-band; NRZ modulation format; OSNR control; Raman fibre amplification; Tbit/s; TeraLight™ fibre; dispersion management; erbium-doped fibre amplification; forward-error-correction coding; optical bandwidth; polarization multiplexing; record transmission capacities; spectral efficiencies; transmission capacities; vestigial sideband filtering; Bandwidth; L-band; Optical fiber filters; Optical fiber polarization; Optical fibers; Optical filters; Optical modulation; Optical recording; Optical signal processing; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1134024
