Title :
Low-complexity duobinary signaling and detection for sensitivity improvement in Nyquist-WDM coherent system
Author :
Jianqiang Li ; Tipsuwannakul, Ekawit ; Karlsson, Magnus ; Andrekson, Peter A.
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
With complexity-reduced digital signal processing, duobinary signaling and detection are proposed for Nyquist-WDM coherent systems. Best sensitivity is experimentally demonstrated i n 25GHz-grid 5×112-Gb/s PM-QPSK WDM systems.
Keywords :
optical modulation; quadrature phase shift keying; signal detection; telecommunication signalling; wavelength division multiplexing; Nyquist-WDM coherent system; PM-QPSK WDM system; complexity-reduced digital signal processing; frequency 25 GHz; low-complexity duobinary signaling detection; Optical crosstalk; Optical filters; Optical noise; Optical polarization; Optical receivers; Signal to noise ratio; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2012 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4673-0262-3
