16QAM Vector Millimeter-Wave Signal Generation Based on Phase Modulator With Photonic Frequency Doubling and Precoding

Zhao, Lun; Yu, Junsheng; Chen, Lei; Min, Ping; Li, JiaHeng; Wang, Renfan

doi:10.1109/jphot.2016.2520821

Cited by 35 publications

(8 citation statements)

References 40 publications

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“…As a key technology in ROF systems, millimeter-wave (mmwave) signal (30 GHz-300 GHz) generation has been widely investigated because mm-wave has abundant bandwidth and it can achieve a high transmission rate [1]- [4]. The most commonly used method for mm-wave generation is based on external optical modulator including single modulator [5], [6] and multiple cascaded modulators [7], [8], since the generated mm-wave base on this kind of method has high-stability and high-purity. Nowadays, a lot of research on W-band mm-wave (75 GHz-110 GHz) generation has been proposed [9]- [12].…”

Section: Introductionmentioning

confidence: 99%

D-Band mm-Wave SSB Vector Signal Generation Based on Cascaded Intensity Modulators

Chen

Zhou

et al. 2020

IEEE Photonics J.

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We proposed and experimentally demonstrated a novel and simple method to realize D-band millimeter-wave (mm-wave) single-sideband (SSB) vector signal generation using cascaded one single-drive Mach-Zehnder modulator (MZM) and one push-pull MZM. After the first MZM driven by a radio frequency (RF) signal of 20-GHz, an optical frequency comb (OFC) with six flat carriers was successfully generated. Using the subsequent push-pull MZM driven by 10-GHz SSB vector signals and a photodiode (PD) for detection, we finally generated D-band SSB vector mm-wave signals at frequencies of 130-GHz and 150-GHz, respectively. The experimental results are well consistent with theoretical and simulation analysis. Based on the proposed scheme, 4-Gbaud generated D-band quadrature phase shift keying (QPSK) and 16 quadrature amplitude modulation (16QAM) mm-wave signals were transmitted over 10-km/25-km single-mode-fiber (SMF) and 1-m wireless links. The bit-error-rate (BER) performance can reach less than 7% hard-decision forward-error-correction (FEC) threshold of 3.8 × 10 −3 .

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Section: Introductionmentioning

confidence: 99%

D-Band mm-Wave SSB Vector Signal Generation Based on Cascaded Intensity Modulators

Chen

Zhou

et al. 2020

IEEE Photonics J.

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“…In addition, external modulation technique can also be jointed with optical frequency multiplication technique to produce high frequency signal generation. By choosing different two sidebands, we can get different frequency multiplication number [14]- [18].…”

Section: Introductionmentioning

confidence: 99%

W-Band 8QAM Vector Millimeter-Wave Signal Generation Based on Tripling of Frequency Without Phase Pre-Coding

et al. 2019

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In this paper, we propose a W-band 8-quadrature-amplitude-modulation (8QAM) frequency tripling photonic vector millimeter-wave (mm-wave) signal generation method by using a phase modulator (PM) with only amplitude pre-coding. The PM is driven by 2-Gbaud 8QAM-modulated amplitude precoded signal at 25 GHz. Instead of phase pre-coding, we only need to reverse the real part of the signal at the receiver after photo detector (PD). The structure of the transmitter and the structure of the receiver are simple. The frequency tripling scheme is completed by numerical simulation, the output optical spectrum is consistent with the theoretical analysis, and bit-error-ratio (BER) curves indicate that the put forward 75 GHz 8QAM vector signal generation technique has good performance. The BER of 6 Gbit/s 75 GHz 8QAM vector mm-wave signal is below 3.8 × 10 −3 after 12 km optical fiber transmission. For all we know, it is the first time to report on the generation of high-order QAM photonic mm-wave signal with odd times of RF frequency by using a single external modulator. INDEX TERMS Millimeter wave, frequency multiplication, phase modulation, digital signal processing, quadrature amplitude modulation. LUN ZHAO received the M.S. degree in communication and information system from the Wuhan Research Institute (WRI), Hubei, China, in 2012, and the Ph.D. degree in electronic science and technology from the School of electronic engineering, Beijing University of Posts and Telecommunications, Beijing, China, in 2016. He is currently working in information and telecommunication engineering with the Ubiquitous Wireless Communication Technology Team, Chongqing University of Posts and Telecommunications. His research interests include radio over fiber, coherent optical communication, machine learning/deep learning in optical communication, optical physical layer security, and 5G mobile networks. LIAN XIONG was born in Huanggang, Hubei, China, in 1985. He received the B.S. degree in telecommunications engineering from the North University of China, Taiyuan, China, in 2008, the M.S. degree in communication and information system from the Taiyuan University of Technology, Taiyuan, in 2011, and the Ph.D. degree in communication and information system from

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“…In recent years, scholars have investigated various precoding auxiliary schemes for the generation of photonic and mm-wave vector signals [10][11][12]. One scheme for the generation of a frequency octupling quadrature phase shift keying (QPSK) signal by precoding is proposed in Reference [10], another two schemes for the generation of frequency quadrupling QPSK signals and frequency 2 of 8 doubling 16QAM signals (also by precoding) are proposed in References [11,12], respectively. Different mm-wave vector signals with high frequencies can be generated through these schemes, thus decreasing the bandwidth demand of the devices.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Octupling Millimeter-Wave Optical Vector Signal Generation via an I/Q Modulator-Based Sagnac Loop

Yang

Qu²,

Liu

2019

Symmetry

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A new method for generating frequency-octupling millimeter-wave (mm-wave) vector signals in optical fields via a Sagnac loop is proposed. In this scheme, two orthogonally polarized fourth order sidebands can be obtained through an integrated dual-polarization quadrature phase shift keying (DP-QPSK) modulator. The two optical sidebands are sent into an I/Q modulator-based Sagnac loop. The I/Q modulator is modulated by a 16QAM baseband signal. In the Sagnac loop, one of the sidebands is modulated by the baseband vector signal along one direction, and the other sideband is unmodulated along the opposite direction because the I/Q modulator has the traveling-wave nature. Thanks to this modulation property and the symmetrical structure of the Sagnac loop, a frequency-octupling mm-wave vector signal that is free from interband beating and fiber chromatic dispersion interference can be generated by the photodetector (PD). After simulating a 20 km single-mode fiber (SMF) transmission, the generated frequency-octupling vector signal was good in function.

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16QAM Vector Millimeter-Wave Signal Generation Based on Phase Modulator With Photonic Frequency Doubling and Precoding

Cited by 35 publications

References 40 publications

D-Band mm-Wave SSB Vector Signal Generation Based on Cascaded Intensity Modulators

D-Band mm-Wave SSB Vector Signal Generation Based on Cascaded Intensity Modulators

W-Band 8QAM Vector Millimeter-Wave Signal Generation Based on Tripling of Frequency Without Phase Pre-Coding

Frequency-Octupling Millimeter-Wave Optical Vector Signal Generation via an I/Q Modulator-Based Sagnac Loop

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