Photonic generation of background-free binary and quaternary phase-coded microwave pulses based on vector sum

Lei, Mingzheng; Zheng, Zhennan; Song, Chunqi; Bai, Yunping; Qian, Jinwang; Gao, Xinlu; Huang, Shanguo

doi:10.1364/oe.27.020774

Cited by 13 publications

(4 citation statements)

References 22 publications

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“…In addition, the phase-coded signal may also be generated based on a single parallel structure integrated modulator with multiple radio frequency (RF) ports, in which the upper and lower branches are loaded with microwave carrier frequency and a coding signal, respectively. A dual-drive Mach–Zehnder modulator (DD-MZM) [ 16 ], dual-parallel dual-drive Mach–Zehnder modulator (DP-DDMZM) [ 17 ], dual-polarization DD-MZM (DP-DDMZM) [ 18 ], or DP-DPMZM [ 19 , 20 ] was used to generate phase-coded signals.…”

Section: Introductionmentioning

confidence: 99%

“…To generate a high-speed multilevel voltage waveform, a high-speed arbitrary waveform generator (AWG) or digital-to-analog conversion (DAC) should be needed. Two independent coding electrical signals can be used to drive one arm of DP-DPMZM [ 20 ] or DP-DDMZM [ 18 ], which can generate quadrature phase shift key (QPSK) signals or quaternary phase-coded signals. However, the frequencies of the two systems are limited since they cannot operate in frequency multiplying mode, and the reconfiguration flexibility of the system is low.…”

Section: Introductionmentioning

confidence: 99%

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A Photonics-Assisted Binary/Quaternary Phase-Coded Microwave Signal Generator Applicable to Digital I/O Interfaces

Yin,

Zhao,

Yang

et al. 2023

Micromachines

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A photonics-assisted binary/quaternary phase-coded microwave signal generator with fundamental/doubling reconfigurable carrier frequency applicable to digital I/O interfaces is proposed and has been verified by experiments. This scheme is based on a cascade modulation scheme, which is used to reconfigure fundamental/doubling carrier frequency and load the phase-coded signal, respectively. By controlling the radio frequency (RF) switch and the bias voltages of the modulator, the switching of the fundamental or doubling carrier frequency can be realized. When the amplitudes and sequence pattern of the two independent coding signals are set reasonably, binary or quaternary phase-coded signals can be realized. The sequence pattern of coding signals is applicable to digital I/O interfaces and can be directly generated through the IO interfaces of FPGA instead of an expensive high-speed arbitrary waveform generator (AWG) or other digital-to-analog conversion (DAC) systems. A proof-of-concept experiment is carried out, and the performance of the proposed system is evaluated from the aspects of phase recovery accuracy and pulse compression capability. In addition, the influence of residual carrier suppression and polarization crosstalk in non-ideal states on phase shifting based on polarization adjustment has also been analyzed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Photonics-Assisted Binary/Quaternary Phase-Coded Microwave Signal Generator Applicable to Digital I/O Interfaces

Yin,

Zhao,

Yang

et al. 2023

Micromachines

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show abstract

“…PSK signal can be generated by using a dual-drive Mach-Zehnder modulator (DDMZM) and optical bandpass filter (OBPF) [9]. In [10], the PSK signal generator is implemented based on a polarization division multiplexing Mach-Zehnder modulator (PDM-MZM) and a 90°hybrid coupler (90°HC). However, in these schemes an OBPF or a 90°HC is used, and the frequency of the generated PSK signal is limited by the OBPF or the 90°HC.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Photonic Generation of Binary Modulated Microwave Signals

Wen

et al. 2020

IEEE Photonics J.

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A novel photonic scheme of binary modulated microwave signals generation based on a dual-polarization quadrature phase-shift keying (DP-QPSK) modulator is proposed and experimentally demonstrated. The scheme is highly reconfigurable, amplitude keying signal (ASK), phase-shift keying signal (PSK) or frequency-shift keying (FSK) signal can be generated by appropriately setting the amplitude of the binary coding signal. The coding signal and local oscillator (LO) signals are independent with each other, binary modulated microwave signals can be generated with arbitrary coding rate and carrier frequency. The frequency deviation of the FSK signal can also be adjusted flexibly. No filter is used in the scheme and the tuning range is large. A proof-of-concept experiment is carried out to verify the feasibility of the proposed system. A 1-Gbps 8-GHz microwave ASK signal, a 0.5-Gbps 6-GHz microwave PSK signal, and a 0.5-Gbps 8/12-GHz microwave FSK signal are g[enerated in the experiment.

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“…In addition, optical fiber sensing that integrates communication and sensing functions plays a more and more important role [13,14,15,16]. It provides sensing solutions with optical performance for almost all kinds of applications and environments, such as monitoring of oil fields and large civil engineering structures, as well as natural environments [17,18,19]. In [20], the authors gave an overview of optical sensing technology for electromagnetic field measurement.…”

Section: Introductionmentioning

confidence: 99%

Survivable Deployments of Optical Sensor Networks against Multiple Failures and Disasters: A Survey

Zhang

Xin

2019

Sensors

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Optical sensing that integrates communication and sensing functions is playing a more and more important role in both military and civil applications. Incorporating optical sensing and optical communication, optical sensor networks (OSNs) that undertake the task of high-speed and large-capacity applications and sensing data transmissions have become an important communication infrastructure. However, multiple failures and disasters in OSNs can cause serious sensing provisioning problems. To ensure uninterrupted sensing data transmission, survivability has always been an important research emphasis. This paper focuses on the survivable deployment of OSNs against multiple failures and disasters. We first review and evaluate the existing survivability technologies developed for or applied to OSNs, such as fiber bus protection, self-healing architecture, and 1 + 1 protection. We then elaborate on the disaster-resilient survivability requirement of OSNs. Moreover, we propose a new k-node (edge) sensing connectivity concept, which ensures the connectivity between sensing data and users. Based on k-node (edge) sensing connectivity, the disaster-resilient survivability technologies are developed. The key technologies necessary to implement k-node (edge) sensing connectivity are also elaborated. Recently, artificial intelligence (AI) has developed rapidly. It can be used to improve the survivability of OSNs. This paper details potential development directions of survivability technologies of optical sensing in OSNs employing AI.

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Photonic generation of background-free binary and quaternary phase-coded microwave pulses based on vector sum

Cited by 13 publications

References 22 publications

A Photonics-Assisted Binary/Quaternary Phase-Coded Microwave Signal Generator Applicable to Digital I/O Interfaces

A Photonics-Assisted Binary/Quaternary Phase-Coded Microwave Signal Generator Applicable to Digital I/O Interfaces

Reconfigurable Photonic Generation of Binary Modulated Microwave Signals

Survivable Deployments of Optical Sensor Networks against Multiple Failures and Disasters: A Survey

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