supported by the National"863"Program of China(No.2007AA01Z263);the Hunan Provincial Natural Science Foundation of China(No.06JJ50108);the Open Fund of Key Laboratory of Optical Communication and Lightwave Technologies(Beijing University of Posts Telecommunications,Ministry of Education,P.R.China);the Program for New Century Excellent Talents in University,and the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20040532005).
We propose a novel transmitter and receiver for differential quadrature phase-shift keying (DQPSK) format. The impact of the first-order polarization mode dispersion (PMD) on systems using DQPSK with 100- Gb/s non...