A5019477759- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Terahertz technology and applications
- Millimeter-Wave Propagation and Modeling
- Semiconductor Lasers and Optical Devices
- Orbital Angular Momentum in Optics
- Ultra-Wideband Communications Technology
- Metamaterials and Metasurfaces Applications
- Optical Wireless Communication Technologies
- Radio Frequency Integrated Circuit Design
- Advanced Antenna and Metasurface Technologies
- Spectroscopy and Laser Applications
- Neural Networks and Reservoir Computing
- Gyrotron and Vacuum Electronics Research
- Advanced MIMO Systems Optimization
- Microwave Engineering and Waveguides
- Advanced Fiber Optic Sensors
- Advanced Memory and Neural Computing
- Superconducting and THz Device Technology
- Advanced Optical Network Technologies
- Plasmonic and Surface Plasmon Research
- Blind Source Separation Techniques
- Advanced Wireless Communication Techniques
Zhejiang University
2016-2025
Zhejiang Lab
2019-2024
Sir Run Run Shaw Hospital
2024
China Jiliang University
2024
South China University of Technology
2023
Tsinghua University
2006-2020
University of Electronic Science and Technology of China
2020
Shanghai Jiao Tong University
2020
Huawei Technologies (China)
2020
Australian National University
2020
Photonic generation of Terahertz (THz) carriers displays high potential for THz communications with a large tunable range and modulation bandwidth. While many photonics-based generations have recently been demonstrated discrete bulky components, their practical applications are significantly hindered by the footprint energy consumption. Herein, we present an injection-locked heterodyne source based on generic foundry-fabricated photonic integrated circuits (PIC) attached to uni-traveling...
We experimentally demonstrate an 100 Gbit/s hybrid optical fiber-wireless link by employing photonic heterodyning up-conversion of 12.5 Gbaud polarization multiplexed 16-QAM baseband signal with two free running lasers.Bit-error-rate performance below the FEC limit is successfully achieved for air transmission distances up to 120 cm.
To accommodate the demand of exponentially increased global wireless data traffic, prospective rates for communication in market place will soon reach 100 Gb/s and beyond. In lab environment, transmission throughput has been elevated to level over attributed development photonic-assisted millimeter wave terahertz (THz) technologies. However, most recent demonstrations with are based on spatial or frequency division multiplexing techniques, resulting system's complexity energy consumption....
To accommodate the ever increasing wireless traffic in access networks, considerable efforts have been recently invested developing photonics-assisted communication systems with very high data rates. Superior to photonic millimeter-wave systems, terahertz (THz) band (300 GHz-10 THz) provides a much larger bandwidth and thus promises an extremely capacity. However, capacity potential of THz has by no means achieved yet. Here, we successfully demonstrate 160 Gbit/s transmission using single...
In this letter, we experimentally demonstrate terahertz (THz) photonic wireless transmission of high-speed quadrature-phase-shift-keying (QPSK) and 16 quadrature amplitude modulation (16-QAM) signals in the 350-GHz band, with an effort to extend reach ultrafast 100 Gbit/s. experiment, a narrowband unitraveling-carrier photodiode (UTC-PD) is used for heterodyne generation THz communication signals, which transparent optical formats. Experimental results show that 30 GBd/s QPSK (60 Gbit/s) 25...
The proliferation of wireless broadband services have significantly raised the demand for high data rates. Due to limited bandwidth radio frequency (RF) bands that are currently in use communication purposes, choice `Terahertz (THz) region' (0.3-10 THz) is getting favored thanks its merits bringing together and optical communications with photonics technologies. We report on an experimental demonstration a hybrid THz photonic-wireless transmission based orthogonal polarization dual-antenna...
Recently, remarkable efforts have been made in developing wireless communication systems at ultrahigh data rates, with radio frequency (RF) carriers the millimeter wave (30–300 GHz) and/or terahertz (THz, >300 bands. Converged technologies combining both electronics and photonics show great potential to provide feasible solutions superior performance compared conventional RF technologies. However, technical challenges remain be overcome order support high rates considerably distances...
Despite the considerable effort, fast and highly sensitive photodetection is not widely available at low-photon-energy range (~meV) of electromagnetic spectrum, owing to challenging light funneling into small active areas with efficient conversion an electrical signal. Here, we provide alternative strategy by efficiently integrating manipulating nanoscale optoelectronic properties topological Dirac semimetal PtSe2 its van der Waals heterostructures. Explicitly, realize strong plasmonic...
Since about one and half centuries ago, at the dawn of modern communications, radio optics have been two separate electromagnetic spectrum regions to carry data. Differentiated by their generation/detection methods propagation properties, paths evolved almost independently until today. The optical technologies dominate long-distance high-speed terrestrial wireline communications through fiber-optic telecom systems, whereas mainly dominated short- medium-range wireless scenarios. Now, these...
With the development of various emerging technologies, capacity current wireless communication system is gradually saturated, and terahertz (THz) orbital angular momentum (OAM) have hereby attracted much attention as two key technologies to increase capacity. In this article, a THz-OAM operating at 100 GHz based on transmissive metasurface proposed for first time best our knowledge. The operation principle multiplexing metasurface, which allows simultaneous generation coaxial OAM beams...
In this paper, we demonstrate a photonic up-converted 25 Gbit/s fiber-wireless quadrature phase shift-keying (QPSK) data transmission link at the W-band (75-110 GHz). By launching two free-running lasers spaced 87.5 GHz into standard single-mode fiber (SSMF) central office, radio-over-fiber (RoF) signal is generated and distributed to remote antenna unit (RAU). One laser carries 12.5 Gbaud optical baseband QPSK data, other acts as carrier frequency generating laser. The signals are...
A single-transmitter/single-receiver THz link (0.3-0.5 THz) with a record net data rate of 260 Gbit/s is experimentally demonstrated. Spectrally efficient multi-channel signal transmission enabled by novel frequency-band-allocation scheme pre-and-post-digital equalization.
Future generations of wireless communication systems are expected to support orders magnitude faster data transfer with much lower latency than the currently deployed solutions. Development transceivers higher bandwidth, low energy consumption, and small footprint becomes challenging radio frequency (RF) electronic technologies. Photonics‐assisted technologies show many advantages in generating signals ultrabroad bandwidth at high carrier frequencies millimeter‐wave, terahertz, IR bands....
The terahertz band (0.1 THz-10 THz) with massive spectrum resources is recognized as a promising candidate for future rate-greedy applications, such 6G communications. Optoelectronic communications are beneficial realizing 100 Gb/s data rate and beyond, which have greatly promoted the progress of research. In this article, we give technical insight into key technologies optoelectronic high rates in physical layer, including approaches broadband devices, baseband signal processing...
Photonics-aided terahertz (THz) wireless systems have been progressively developed to accommodate the forthcoming communication with extremely high data rates in recent years. However, restrained by obtainable signal-to-noise ratio (SNR) and dimensions explored THz photonic systems, achieving of Tbit/s beyond is still challenging. In this paper, we present a multi-dimensional multiplexing THz-over-Fiber system, efficiently benefiting from gain both optical wavelength space domains. Enabled...
The radar-centric terahertz integrated sensing and communication (THz-ISAC) is identified as a significant application in future wireless access networks. Up to date, previously reported demonstrations regarding radar performance lack sufficient support complex environment with strong target masking effect. This work tacks this problem by proposing waveform combining linear frequency modulation (LFM) phase shift keying (PSK). We first derive metrics of the LFM-PSK through theoretical...
ABSTRACT Flexible multiplexing chips that permit reconfigurable multidimensional channel utilization are indispensable for revolutionary 6G terahertz communications, but the insufficient manipulation capability of waves prevents their practical implementation. Herein, we propose first experimental demonstration a flexible chip communication by revealing unique mechanism topological phase (TP) transition and perseveration in heterogeneously coupled bilayer valley Hall photonic system. The...
We propose an approach to generate ultrawideband (UWB) pulses with tunable high-speed modulation based on pulse compression. Flexible generation of up a record 5 Gbits/s on-off keying impulse radio UWB signals are successfully demonstrated as well. also investigate bit-error-rate (BER) performance after 40 km single mode fiber transmission by employing digital signal processing receiver, and the BER below forward error correction limit is achieved.
We propose and experimentally demonstrate THz photonic wireless communication systems with 16-QAM modulation in the 375-450 GHz band. The overall throughput reaches as high 80 Gbit/s by exploiting four channels 5 Gbaud baseband per channel. create a coherent optical frequency comb (OFC) for generation of multiple carriers based on photo-mixing uni-travelling carrier photodiode (UTC-PD). OFC configuration also allows us to generate reconfigurable low phase noise. multiple-channel radiation is...
A photonic multi-channel terahertz (THz) wireless transmission system in the 350-475 GHz band is experimentally demonstrated. The employment of six THz carriers modulated with 10 Gbaud Nyquist quadrature phase-shift keying baseband signal per carrier results an overall capacity up to 120 Gb/s. high-frequency stability and low phase noise are generated based on photomixing 25-GHz spaced optical tones a single local oscillator derived from same frequency comb ultrabroadband uni-travelling...
We experimentally demonstrate an optical network compatible high-speed optoelectronics THz wireless transmission system operating at 400-GHz band. In the experiment, Nyquist quadrature phase-shift keying signals in a 12.5-GHz ultradense wavelength-division multiplexing grid is converted to radiation by photomixing antenna integrated unitravelling photodiode. The transparent modulation formats. also experiment scalability of our applying single four channels, as well mixed three channels....
To accommodate the ever-increasing wireless capacity, terahertz (THz) orbital angular momentum (OAM) beam that combines THz radiation and OAM technologies has attracted much attention recently, with contributing efforts to explore new dimensions in region. In this paper, we provide an overview of generation detection techniques THz-OAM beams, as well their applications communications. The principle research status typical methods are surveyed, advantages disadvantages each method summarized...
Free-space optics (FSO) in the mid-infrared (mid-IR) contains rich spectral resources for future ultrahigh-speed wireless communications yet is currently under-exploited. Two atmospheric transmission windows at mid-IR, namely, mid-wave IR (MWIR, 3–5 μm) and long-wave (LWIR, 8–12 μm), show great potential supporting free-space both terrestrial space application scenarios. Particularly, LWIR signal with a longer wavelength has high intrinsic robustness against aerosols' scattering...
Terahertz (THz) radar has been considered as a new solution to the dilemmas in performing ultra-high-resolution imaging and obtaining highly precise target information. In this work, photonic THz interference inverse synthetic aperture (THz InISAR) scheme is proposed proof-of-concept experimentally demonstrated, targeting high resolution positioning of multiple targets. We employ an optical frequency comb uni-traveling carrier photodiode (UTC-PD) photonically generate linear...
Multifunctional convergence is one of the key physical features in future generation networks and Internet things architectures. In this paper, we propose experimentally demonstrate a unified terahertz (THz) system operating 300 GHz band, with potential simultaneously enabling high-speed communication high-resolution ranging over common optical infrastructure. Both THz sensing signals are generated based on photonics cutting-edge transceiver technologies. experiment, 16-quadrature amplitude...