Bandwidth-Efficient WDM-CAP-PON Using Digital Hilbert Single-Sideband Modulation

被引：14

作者：

Dong, Z. ^{[1
]}

Yu, J. ^{[2
]}

Lu, J. ^{[3
,4
]}

机构：

[1] Huaqiao Univ, Dept Elect Sci & Technol, Key Lab Light Propagat & Transmiss, Xiamen 361021, Peoples R China

[2] ZTE Inc, Opt Lab, Morristown, NJ 07960 USA

[3] Hebei Univ Technol, Tianjin Key Lab Elect Mat & Devices, Tianjin 300401, Peoples R China

[4] Hebei Univ Technol, Sch Informat Engn, Tianjin 300401, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2015年 / 7卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Digital Hilbert single-side-band modulation; Nyquist; wavelength division multiplexing-carrier-less amplitude/phase modulation-passive optical network (WDM-CAPP-ON); digital pre-equalization; PHASE MODULATION; OFDM; AMPLITUDE;

D O I：

10.1109/JPHOT.2015.2480543

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：

We propose a wavelength division multiplexing-carrier-less amplitude/phase modulation-passive optical network (WDM-CAP-PON) downstream with enhanced bandwidth efficiency using low-cost digital Hilbert single-sideband modulation. For each optical subcarrier, there are as many as four 10-Gb/s digital channels carried by a Nyquist sub-carrier multiplexing scheme, which can be efficiently generated only using one push-pull Mach-Zehnder modulator (MZM). Compared with the conventional systems with independent optical transmitters and a double-sideband modulation format, the proposed system requires at least four times fewer downlink optical transmitters at the optical line terminal (OLT), which can be translated into savings in cost, power consumption, and footprint, as well as significant mitigation of the power fading effect in fiber transmission.

引用

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