Title :
Real-time Digital Carrier & Data Recovery for a Synchronous Optical Quadrature Phase Shift Keying Transmission System
Author :
Noé, Reinhold ; Pfau, Timo ; Adamczyk, Olaf ; Peveling, Ralf ; Herath, Vijitha ; Hoffmann, Sebastian ; Porrmann, Mario ; Ibrahim, Selwan K. ; Bhandare, Suhas
Author_Institution :
Univ. of Paderborn, Paderborn
Abstract :
This paper focuses on the recent 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 1.7ldr10-5, lower than ever reported before for a real-time system with DFB lasers.
Keywords :
optical communication; quadrature phase shift keying; bit error ratio; coherent optical communication; data recovery; digital signal processing; distributed feedback lasers; quadrature receiver; real-time digital carrier; real-time digital in-phase; synchronous optical quadrature phase shift keying transmission system; Digital signal processing; Distributed feedback devices; Laser feedback; Optical design; Optical feedback; Optical fiber communication; Optical receivers; Optical signal processing; Quadrature phase shift keying; Real time systems; Optical communication; digital integrated circuits; quadrature phase shift keying; real time systems; synchronous detection;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380539
