Title :
Coherent Compensation for 100G DP-QPSK With One Sample per Symbol Based on Antialiasing Filtering and Blind Equalization MLSE
Author :
Gorshtein, Alik ; Levy, Omri ; Katz, Gilad ; Sadot, Dan
Author_Institution :
Electr. Eng. & Comput. Dept., Ben-Gurion Univ., Beer-Sheva, Israel
Abstract :
We propose coherent detection with one sample/symbol. Maximum-likelihood sequence estimation (MLSE) is used to compensate for intersymbol interference introduced by antialiasing filtering. The 100 000-ps/nm chromatic dispersion and 100-ps differential group delay are compensated with 1.5-dB penalty. Blind MLSE equalization is proposed.
Keywords :
blind equalisers; channel estimation; filtering theory; intersymbol interference; maximum likelihood estimation; optical communication; quadrature phase shift keying; DP-QPSK signals; MLSE equalization; antialiasing filtering; bit rate 100 Gbit/s; blind equalization MLSE; chromatic dispersion; coherent detection; differential group delay; intersymbol interference; maximum likelihood sequence estimation; Coherent detection; maximum-likelihood estimation; optical communication; quadrature phase-shift keying; signal processing; signal sampling;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2051801
