Title :
Reduced driving voltage optical duobinary transmitter and its impact on transmission performance over standard single-mode fiber
Author :
Gené, J.M. ; Nieves, R. ; Buxens, A. ; Peucheret, C. ; Prat, J. ; Jeppesen, P.
Author_Institution :
Opt. Commun. Group, Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
6/1/2002 12:00:00 AM
Abstract :
We have investigated the impact of reducing the electrical driving voltage in a 10-Gb/s optical duobinary transmitter from 100% to 25% of the full swing 2 V/sub /spl pi// of the Mach-Zehnder modulator. Reduction in the driving voltage enhances the signal extinction ratio and reduces the complexity of the transmitter while maintaining the high tolerance of this modulation technique to chromatic dispersion. Transmission at 10 Gb/s with 25% of the full swing over a 182-km unrepeatered span of uncompensated standard single-mode fiber has been achieved with low sensitivity penalty.
Keywords :
electro-optical modulation; optical fibre communication; optical fibre dispersion; optical transmitters; 10 Gbit/s; 182 km; 182-km unrepeatered span; 2 V; Mach-Zehnder modulator; chromatic dispersion; electrical driving voltage; high tolerance; low sensitivity penalty; reduced driving voltage optical duobinary transmitter; signal extinction ratio; standard single-mode fiber; transmission performance; transmitter complexity; uncompensated standard single-mode fiber; Band pass filters; Erbium-doped fiber amplifier; Optical attenuators; Optical fiber communication; Optical filters; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Voltage;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1003112
