A Continuously Tunable and Filter-Less QPSK Modulated Millimeter-Wave Signal Generation with Frequency Quadrupling Just Based on an MZM

被引：0
作者：
Hu, Haifeng [1 ]
Liu, Baoju [1 ]
Wang, Dongfei [2 ]
机构：
[1] Pingdingshan Univ, Sch Informat Engn, Pingdingshan 467000, Peoples R China
[2] Beijing Inst Graph Commun, Sch Informat Engn, Beijing 102600, Peoples R China
来源：
PHOTONICS | 2022年 / 9卷 / 07期
关键词：
millimeter-wave signal generation; frequency quadrupling; Mach-Zehnder modulator (MZM); radio over fiber; PHOTONIC GENERATION;
D O I：
10.3390/photonics9070474
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we propose a new frequency quadrupling scheme to generate a quadrature phase shift keying (QPSK) modulated vector millimeter-wave signal, in which an optical filter is not necessary. To eliminate constellation overlapping of the generated vector millimeter-wave signal caused by phase multiplication in the process of frequency multiplication, a precoding assisted technique is adopted. The principle and feasibility of the proposed scheme is deduced by a detailed mathematical formula. Simulations are carried out to generate 40 GHz QPSK modulated vector millimeter-wave signals using a 10 GHz radio frequency source and the BER performance is analyzed in detail. The results show that BER of the generated 5/10-Gbaud vector millimeter-wave signal is below 3.8 x 10(-3), when the input optical power for into photo-detector is higher than -20.67 dBm.
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页数：9
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