A5026240748- Advanced Photonic Communication Systems
- Optical Network Technologies
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Millimeter-Wave Propagation and Modeling
- Advanced Fiber Optic Sensors
- Optical Wireless Communication Technologies
- Advanced Wireless Communication Techniques
- Terahertz technology and applications
- Orbital Angular Momentum in Optics
- PAPR reduction in OFDM
- Telecommunications and Broadcasting Technologies
- Laser-Matter Interactions and Applications
- Wireless Signal Modulation Classification
- Microfluidic and Bio-sensing Technologies
- Optical Polarization and Ellipsometry
- Molecular Communication and Nanonetworks
- Advanced Sensor and Energy Harvesting Materials
- Acoustic Wave Resonator Technologies
- Wireless Communication Networks Research
- Advanced Data Compression Techniques
- Sperm and Testicular Function
- Advanced Frequency and Time Standards
Purple Mountain Laboratories
2020-2025
Xi'an Jiaotong University
2024
Southeast University
2020-2023
Beijing University of Posts and Telecommunications
2016-2020
Ubiquitous Energy (United States)
2008
In this Letter, we experimentally demonstrate the first real-time transparent fiber-THz-fiber 2 × multiple-input multiple-output (MIMO) transmission system with a record line rate of 125.516 Gbps at 360-430 GHz based on photonic remote heterodyning, hybrid optoelectronic down-conversion, and commercial digital coherent modules. The 103.125-Gbps net data using dual-polarization quadrature phase-shift keying (DP-QPSK) modulation is successfully transmitted over two spans 20-km standard...
Terahertz band (0.1 to 10 THz) with high carrier frequency and large available bandwidth has become a promising candidate meet the 100 Gbit/s or even 1 Tbit/s data rate required by future six-generation (6G) mobile communication networks. Compared all-electrical methods generate terahertz signals, photon-assisted technology can break bottleneck of limit electronics devices, signal frequency, bandwidth, flexible tunability easy integration capacity fiber link. In this paper, we introduce...
Silver nanowires are widely used in catalysts, surface enhanced Raman scattering, microelectronic equipment, thin film solar cells, microelectrodes and biosensors for their excellent conductivity, heat transfer, low resistance, high transparency good biocompatibility. However, the optical nonlinearity of silver has not been further explored yet. In this paper, three nanowire samples with different concentrations produced via a typical hydrothermal method. Their applications to fiber lasers...
We propose and experimentally demonstrate a real-time fiber-THz-fiber 2 × multiple-input multiple-output (MIMO) seamless integration system at 340–510 GHz using commercial digital coherent optics (DCO) modules for baseband signals processing, which realizes record net rate of 103.125 Gb/s dual polarization quadrature-phase-shift-keying (DP-QPSK) delivery over two spans 20 km wireline single-mode fiber-link 3 m wireless MIMO link without THz power amplifier under 15% soft-decision...
As the mobile communication evolves from sub-6GHz to millimeter wave (MMW) frequency bands, demand for high-speed wireless transmission rates exceeding hundreds of gigabits per second is becoming more and prominent. It one important cornerstones supporting numerous emerging bandwidth-consuming applications represented by metaverse, digital twin so on. So far, there a huge room improvement in rate, which far inferior capacity fiber optic links. In this paper, we have proposed experimentally...
This Letter demonstrates a real-time 100-GbE fiber-wireless seamless integration system operating at the whole W band (75-110 GHz). Based on pair of commercial digital coherent optical modules, transparent transmission 125-Gb/s dual-polarized quadrature phase-shift keying signal has been successfully achieved over two-spans 20-km fiber and up to 150-m electromagnetic single-input single-output wireless link. To best our knowledge, this is first demonstration >100-m distance millimeter-wave...
The coexistence needs of sensing and communication in millimeter-wave (mmW) bands have urgently driven the seamless integration upcoming mmW era. However, time-frequency competition between two functions makes it difficult to accommodate both high resolution large capacity. In this article, we designed a W-band fiber-wireless link with integrated enabled by electromagnetic polarization multiplexing. ultra-wideband W band is asymmetrical single-sideband modulation along optical heterodyne...
An optically-controlled phase-tunable microwave mixer based on a dual-drive dual-parallel Mach-Zehnder modulator (DDDP-MZM) is proposed, which supports wideband phase shift and immunity to power fading caused by chromatic dispersion. By using carrier-suppressed single side-band (CS-SSB) modulation for the local oscillator (LO) signal double (CS-DSB) input signal, no vector superposition same output frequency occurs, making system immune from Phase tuning achieved shifting of LO direct...
The evolution of mobile communications towards millimeter-wave (mmW) bands provides a strong opportunity for the seamless integration radar and wireless communications. We present photonics-aided mmW integrated sensing (ISAC) system constructed by photonic up-conversion using coherent optical frequency comb, which facilitates zero offset resulting signal. functions are enabled joint waveform that encodes DC-offset QPSK signal on linear frequency-modulated continuous wave (LFMCW) in baseband....
From the perspective of wireless transmission distance in terahertz-band (THz-band), 10–100 m, 100–1000 and ≥1000 m ranges are recommended for indoor communications, medium-distance long-distance respectively. However, most existing photonic terahertz communication demonstrations reported previous studies have a less than 100 with some being even shorter at 10 or 1 m. In this study, by combining high-gain high-sensitivity modules, as well signal processing technology, we successfully...
We have experimentally demonstrated, for the first time, a single-channel 50 Gbit/s net rate THz-band transmission over an 850 m wireless link, which also creates longest distance and largest distance-rate product photonic THz-wireless in world.
We demonstrate 6G-oriented 100 GbE real-time streaming service applications in fiber-THz-fiber seamless transmission with a record net data rate of 103.125 Gbps at 370 GHz enabled by photonic up-/down-conversion and digital coherent modules.
This paper investigates using minimum-mean- square-error frequency-domain equalization (MMSE-FDE) based on a simple signal-to-noise ratio (SNR) estimation method for single-carrier block transmission (SCBT) over multi-path fading channels. The SNR was estimated by channel frequency response (CFR) estimates obtained in the domain. performance evaluated environments of IEEE 802.15.3c which is an emerging 60-GHz standard supporting data rates multi-giga bits per second (multi-Gbps). We also...
A measurement method of dual-mode radio frequency orbital angular momentum (RF-OAM) beams is proposed, dedicated to meeting the practical needs mode-division multiplexing (OAM-MDM) in free-space communication. Theoretical analysis and numerical simulations are conducted demonstrate that a OAM beam can be unambiguously measured by gathering phase gradient function circle around axis calculating its average value PV (peak/valley) factor. proof-of-concept experiment presented, which employs...
An optically controlled system for generating and continuously steering radio frequency (RF) signals with double orbital angular momentum (OAM) modes is proposed experimentally demonstrated. The optical carrier's utilization efficiency can be doubled through the distinct electro-optical modulation, which based on two single-sideband modulation operations a single carrier customized dual-parallel Mach-Zehnder modulator. A constructive antenna phase feeding method of circular array...
The first real-time transparent fiber-THz-fiber 2 × MIMO transmission system with a record line rate of 125.516 Gbit/s and net data 103.125 is demonstrated at 360 GHz-430GHz based on photonic down-conversion.
The intelligentization of future society puts forward an urgent demand for high-precision sensing and ultra-high-speed wireless communications in the upcoming beyond fifth-generation (B5G) era. We propose experimentally demonstrate a novel spectrum-efficient MMW-over-fiber (MoF) architecture joint communication B5G optical-wireless converged networks. proposed MoF is based on polarization interleaving polarization-insensitive filtering. In architecture, sidebands are generated simultaneously...
In fiber-wireless integration systems, it is valuable to investigate whether digital subcarrier multiplexing (SCM) signal effective in improving nonlinear tolerance against photodiode (PD) saturation compared single-carrier (SC) signal. For a fair comparison, the mitigation of linear impairments especially for IQ mixing effects become significant. this article, we first analyze impacts transmitter SC and SCM signals. Then, employ real-valued multiple-input multiple-output (MIMO)...
We propose and demonstrate a new architecture that integrates terahertz high-speed data communications high-resolution radar sensing systems. Based on THz photonics for the first time, we realize communication transmission at band, while achieving two target detections.