Title :
Effects of external modulation transmission at 10 Gb/s without dispersion compensation through an all-optical node concatenation
Author :
de L Rocha, M. ; De Barros, Miriam R X ; De Oliveira, Maria F. ; Horiuchi, Mariza R. ; Rossi, Sandro M. ; Rosolem, João B. ; Juriollo, Antonio A. ; Sachs, Antonio C. ; Paradisi, Alberto
Author_Institution :
CPqD Telecom & IT Solutions, Campinas, Brazil
Abstract :
Originally designed for direct modulation at 2.5 Gb/s/channel, in a metropolitan scale basis, the optical metro network for emerging gigabit applications (OMEGA) test bed performance is evaluated in a transmission experiment through spans of 20 km of standard (STD) fiber, each, and transparent nodes, where one channel is externally modulated at 10 Gb/s. Measurements have been carried out in two configurations not employing dispersion compensation: point-to-point light paths and a re-circulating loop. Results are compared to those obtained with direct modulation at 2.5 Gb/s/channel. A penalty increase of ∼2 dB at a no-floor bit-error rate (BER) of 10-12 after 80 km (five nodes) indicates that, for metropolitan areas, the OMEGA test bed original design may tolerate a cost-effective network capacity expansion that involves an upgrade of transponders only.
Keywords :
metropolitan area networks; optical fibre networks; optical modulation; 10 Gbit/s; 20 km; OMEGA test; STD; external modulation transmission; fiber; gigabit applications; optical metro network; optical node concatenation; point-point light path; recirculating loop; transparent nodes; Bit rate; Chirp; Dispersion; Optical design; Optical fiber networks; Optical fiber testing; Optical modulation; Optical transmitters; Urban areas; Wavelength division multiplexing;
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
DOI :
10.1109/IMOC.2003.1271841
