REALTIME DIGITAL SIGNAL PROCESSING IN COHERENT OPTICAL PDM-QPSK AND PDM-16-QAM TRANSMISSION

被引：0
|
作者：
Noe, R. [1 ]
Panhwar, M. F. [1 ]
Woerdehoff, C. [2 ]
Sandel, D. [1 ]
机构：
[1] Univ Paderborn, EIM E, Warburger Str 100, D-33098 Paderborn, Germany
[2] Univ Bielefeld, CITEC, D-33615 Bielefeld, Germany
来源：
2014 PROCEEDINGS OF THE 22ND EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO) | 2014年
关键词：
Digital signal processing; coherent fiberoptic transmission; polarization-division multiplexing; polarization control; equalization; 16-QAM;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Coherent fiberoptic transmission with synchronous detection of 4, 8 or more bit/symbol enhances spectral efficiency. It relies on polarization-division multiplexing (PDM) and quadrature phase shift keying (QPSK) or higher-order quadrature amplitude modulation (QAM). A coherent polarization diversity, in-phase and quadrature receiver detects the optical field information. Its most important tasks are to recover the carrier in a laser phase noise tolerant manner and to control optical polarization electronically. We present suitable digital signal processing designs and their usage in realtime coherent transmission. We likewise discuss chromatic dispersion (CD) and polarization mode dispersion (PMD) equalization, needed for longer fibers.
引用
收藏
页码：1885 / 1889
页数：5
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