A full-duplex WDM-RoF system based on tunable optical frequency comb generator

被引：29

作者：

Zhang, Chan ^{[1
,2
]}

Ning, TiGang ^{[1
,2
]}

Li, Jing ^{[1
,2
]}

Pei, Li ^{[1
,2
]}

Li, Chao ^{[1
,2
]}

Ma, Shaoshuo ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab All Opt Network & Adv Telecommun Network, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2015年 / 344卷

基金：

中国国家自然科学基金;

关键词：

WDM-RoF; Optical comb; Full-duplex; Optical-wireless; PHASE MODULATORS; NETWORKS; PON;

D O I：

10.1016/j.optcom.2015.01.038

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A prototype of full-duplex wavelength-division-multiplexing-based radio-over-fiber (WDM-RoF) system using a single continuous wave (CW) laser at central station (CS) is proposed and investigated. In the proposal, the tunable optical frequency comb (OFC) generator is performed by cascading an electro-absorption modulator (EAM), a phase modulator (PM) and a Mach-Zehnder intensity modulator (IM). Then the proposed OFC is used as the source of WDM-RoF network. The base station (BS) is simplified by using central carrier along with downlink multi-frequency millimeter-wave signals (MMWs). In the scheme, we obtain 21 comb lines within 0.2 dB power deviation with an interval about 10 GHz. Then we apply it to a bidirectional 1:7 WDM-RoF cellular network. For the downlink, three MMWs with frequencies of 40 GHz, 60 GHz and 80 GHz are obtained. For the uplink, 7 WDM channels carrying upstream signal are converted simultaneously. Both down and uplink delivery over 20 km transmission with less than 1 dB power penalty, which shows high spectral-efficiency and good performance over long-distance delivery. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：65 / 70

页数：6

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