Continuous Phase Modulation for Fiber-Optic Links

被引：10
|
作者：
Detwiler, Thomas F. [1 ]
Searcy, Steven M. [1 ]
Ralph, Stephen E. [1 ]
Basch, Bert [2 ]
机构：
[1] Georgia Inst Technol, Atlanta, GA 30308 USA
[2] Verizon Labs, Waltham, MA 02451 USA
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2011年 / 29卷 / 24期
关键词：
100 Gb/s ethernet; continuous phase modulation (CPM); optical networking; CPM SIGNALS; EQUALIZATION; TRANSMISSION;
D O I：
10.1109/JLT.2011.2174193
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：
Advances in photonics, silicon electronics and digital signal processing (DSP) have converged to enable highly efficient transmission across fiber optic channels. Single wavelength data rates of 112 Gb/s are sought for wide deployment based on QPSK transmission, coherent detection, and digital demodulation. Here we examine continuous phase modulation (CPM) as a means to enhance performance and reach of coherent optical links. We quantify the robustness of the constant amplitude CPM format to spectral filtering and nonlinearities in comparison to QPSK. The challenges of generating and receiving the CPM waveform are considered and a novel CPM transmitter architecture is proposed.
引用
收藏
页码：3659 / 3671
页数：13
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