Title :
Performance optimization of RZ data format in WDM systems using tunable pulse-width management at the transmitter
Author :
Yan, L.-S. ; Nezam, M. R Motaghian ; Sahin, A.B. ; McGeehan, J.E. ; Luo, T. ; Yu, Q. ; Willner, Alan E.
Author_Institution :
Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA
fDate :
3/1/2005 12:00:00 AM
Abstract :
Tunable pulse-width management is one of the efficient methods to enhance the robustness of return-to-zero (RZ) data formats for long-haul transmission systems. We demonstrate both single channel and 4 × 10-Gb/s wavelength-division-multiplexed performance optimization using tunable pulse-width management. Pure RZ single with tunable pulse-width is generated by changing the driving voltages on a phase modulator and the dispersion values of a tunable dispersion element simultaneously according to our simulation results. Varying the pulse width from 50 to 10 ps at the transmitter can almost double the transmission distance with 4% variation in the residual link dispersion.
Keywords :
optical fibre dispersion; optical fibre networks; optical modulation; optical transmitters; optical tuning; phase modulation; telecommunication network management; wavelength division multiplexing; 10 Gbit/s; 10 to 50 ps; 40 Gbit/s; RZ data format; WDM systems; long-haul transmission systems; optical transmitter; performance optimization; phase modulator; residual link dispersion; return-to-zero data formats; tunable dispersion element; tunable pulsewidth management; wavelength-division-multiplexing; Chirp; Chromatic dispersion; Optical fiber devices; Optical fiber polarization; Optical pulses; Optical transmitters; Optimization; Phase modulation; Space vector pulse width modulation; Wavelength division multiplexing; Chromatic dispersion; optical communications; phase modulation; return-to-zero; tunable pulse-width;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.839983
