Title :
A comparison of equalizers for compensating polarization-mode dispersion in 40-Gb/s optical systems
Author :
Sewter, Jonathan ; Carusone, Anthony Chan
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
A system-level analysis of first-order polarization-mode dispersion (PMD) effects in a 40-Gbit/s optical system is used to compare quantitatively different electronic equalizer architectures as potential PMD compensators. It is found that a decision feedback equalizer (DFE) consisting of a 3-tap feedforward equalizer (FFE) and a 1-tap feedback equalizer (FBE) is able to increase the useful length of an optical system by more than eight times when PMD is the dominant limiting factor.
Keywords :
compensation; decision feedback equalisers; feedforward; optical feedback; optical fibre dispersion; optical fibre polarisation; 1-tap feedback equalizer; 3-tap feedforward equalizer; 40 Gbit/s; DFE; FBE; FFE; PMD compensators; compensation; decision feedback equalizer; equalizers; first-order PMD; polarization-mode dispersion; Decision feedback equalizers; Fiber nonlinear optics; High speed optical techniques; Nonlinear optics; Optical feedback; Optical fiber polarization; Optical fibers; Optical refraction; Optical variables control; Polarization mode dispersion;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464889
