Experimental Synchronization Monitoring of I/Q Misalignment and Pulse Carving Misalignment in 20-Gbit/s RZ-DQPSK Data Generation
Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany
Proceedings: ECOC 2007
Pages: 2Language: englishTyp: PDF
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Authors:
Wu, Xiaoxia; Christen, Louis; Zhang, Bo; Yang, Jeng-Yuan; Zhang, Lin; Nuccio, Scott R.; Willner, Alan E. (Dept. of Electrical Engineering - Systems, University of Southern California)
Paraschis, Loukas (Advanced Technology, Core Routing, Cisco Systems)
Abstract:
We experimentally demonstrate the misalignment monitoring of I/Q data streams and carver misalignment in a 20-Gbit/s RZ-DQPSK transmitter. We get 20dB dynamic range for data misalignment and 6.3dB dynamic range for carver misalignment by measuring RF clock-tone and low-frequency power.