Title :
Analysis of optimum dispersion maps for DQPSK systems
Author :
Cartaxo, Adolfo ; Costa, Nelson ; Fonseca, Daniel
Author_Institution :
Inst. de Telecomun., Inst. Super. Tecnico, Lisbon, Portugal
Abstract :
The optimum dispersion maps (ODMs) for 43 Gbit/s DQPSK systems are analyzed using a semi-analytical simulation method. We show that the ODMs for DQPSK systems show reduced dependence on the duty-cycle of the transmitted signal and nonlinear crosstalk. It is also shown that DQPSK is quite resilient to the variation of the dispersion map. Pre-compensation of dispersion different from zero leads to reduced performance improvement in DQPSK systems. Close to zero residual dispersion per span should be avoided.
Keywords :
crosstalk; phase shift keying; DQPSK systems; nonlinear crosstalk; optimum dispersion maps; semianalytical simulation method; transmitted signal; Bandwidth; Erbium-doped fiber amplifier; Fiber nonlinear optics; Nonlinear optics; Optical crosstalk; Optical filters; Optical transmitters; Phase shift keying; Shape; Stimulated emission; Differential quadrature phase-shift keying (DQPSK); optimum dispersion map;
Conference_Titel :
Transparent Optical Networks (ICTON), 2010 12th International Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-7799-9
Electronic_ISBN :
978-1-4244-7797-5
DOI :
10.1109/ICTON.2010.5549338
