Title :
Electronic dispersion compensation for PMD in 40-GB/s optical links
Author :
Yang, Kang ; Liu, Jianfei ; Zeng, Xiangye
Author_Institution :
School of Information Engineering, Hebei University of Technology, Tianjin, China
Abstract :
In 40-Gb/s optical systems, it is impossible to neglect the electronic dispersion of polarization-mode dispersion (PMD). As the data rate is increased, the maximum useful length of the fiber decreases according to the square of the increase. With the development of VLSI and DSP technologies, the electronic dispersion compensation for optical network has aroused greater world attention. In this paper, the performance of decision feedback equalizer (DFE) in PMD-limited 40-GB/s optical links is analyzed by using Matlab/Simulink. A simple equalizer circuit, in fold-cascade traveling-wave filter topology, is presented and the results based on S-parameter simulations show that a DFE equalizer consisting of a 3-tap feed forward equalizer (FFE) and a 2-tap feed back equalizer (FBE) can mitigate PMD effectively.
Keywords :
Decision feedback equalizers; Digital signal processing; Feeds; Optical feedback; Optical fiber communication; Optical fiber networks; Optical fiber polarization; Optical filters; Polarization mode dispersion; Very large scale integration; DFE; EDC; FBE; FFE; PMD; S-parameter; fold-cascade; traveling-wave filter;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
