White Papers

Real-Time Digital Carrier & Data Recovery for a Synchronous Optical Quadrature Phase Shift Keying Transmission System

Overview This paper focuses on the progress in coherent optical communication using advanced Digital Signal Processing (DSP) technology. In particular the design of DSP components is presented which are required to realize a 10 Gbaud synchronous optical Quadrature Phase Shift Keying (QPSK) transmission system. Additionally the measurement results of a preliminary synchronous QPSK transmission setup with Distributed FeedBack (DFB) lasers and real-time digital In-phase and Quadrature (I&Q) receiver at a data rate of 1.4 Gbit/s are shown. The minimum Bit Error Ratio (BER) was 1.7"10-5, lower than ever reported before for a real-time system with DFB lasers.

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Publisher
University of Paderborn
File Format
PDF
Date Published
Oct 7, 2008
Format
White Papers
Topics
Data Recovery - Security, Optical Networking

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