A5048974419- Advanced Photonic Communication Systems
- Optical Network Technologies
- Photonic and Optical Devices
- Advanced Optical Network Technologies
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Semiconductor Lasers and Optical Devices
- Optical Wireless Communication Technologies
- Millimeter-Wave Propagation and Modeling
- Telecommunications and Broadcasting Technologies
- Advanced Data Compression Techniques
- Error Correcting Code Techniques
- PAPR reduction in OFDM
- Advanced Optical Sensing Technologies
- Advanced Wireless Communication Techniques
Purple Mountain Laboratories
2020-2024
Southeast University
2020-2022
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...
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...
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....
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.
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)...
This Letter demonstrates a novel, to the best of knowledge, overlapping single-sideband (OSSB) transmission scheme for spectrally efficient multi-service fiber-wireless (FiWi) access in low-cost direct-detection (DD) THz system. Utilizing proposed OSSB scheme, user data from different services can share same spectrum resource yet be successfully demodulated via one cost-effective DD receiver conjunction with Kramers-Kronig (KK) based SSB field reconstruction and look-up table (LUT) enabled...
Outdoor long-range terahertz (THz) communications often come at the expense of transmission rate. Moreover, practicability single polarization optical/THz link, which is commonly used in previous THz demonstrations based on photonics, extremely limited by following two fatal defects. One relying active control, and other not supporting transparent bridging optical division multiplexed (PDM) signals for mature coherent communication networks. In this work, a large-capacity photonics-aided...
The elastic optical network (EON) can accommodate dynamic and diverse demands of next-generation applications by provisioning flexible lightpaths for them. Consequently, blocking probability these requests be reduced especially in sliding scheduled traffic, where are to start well after their arrival. In this paper, a nonlinear impairment-aware routing, modulation spectrum assignment (NLI-RMSA) problem was investigated modeled under traffic model. We proposed novel resource allocation scheme...
Intensity modulation/direct detection (IM/DD) and coherent schemes are two kinds of promising solutions to achieve the evolution for B5G/6G fronthaul networks. IM/DD has more mature commercial deployment applications short-reach with lower costs simpler configurations compared solutions. In this paper, we experimentally demonstrate a local area network-wavelength division multiplexing (LAN-WDM) access system record bit rate 2 Tb/s (250 Gbit/s×8) probabilistic shaping eight-pulse amplitude...
We experimentally demonstrated and compared PAM-4, CAP-16QAM DMT-16QAM modulations in a symmetrical 50-Gb/s/λ PON based on bandwidth-limited optics over the same fiber link at O-band. The performance of power budget dispersion are discussed.
We propose and experimentally demonstrate an intelligent nonlinear compensation method using a stacked autoencoder (SAE) model in conjunction with principal component analysis (PCA) technology bidirectional long-short-term memory coupled ANN (BiLSTM-ANN) equalizer for end-to-end (E2E) fiber-wireless integrated system. The SAE-optimized constellation is utilized to mitigate nonlinearity during the optical electrical conversion process. Our proposed BiLSTM-ANN primarily based on time...
We experimentally demonstrated single-lane 100-Gbaud PAM-8 and PS-PAM-16 signals IM/DD transmission over 1-km NZDSF using one single-DAC single-Photodiode with joint nonlinear equalization techniques. 350-Gb/s signal can be achieved.
Based on 256-element phased-array antenna and photonics-assisted mm-Wave communication, we successfully demonstrate real-time bi-directional 1.5Gbps uncompressed high-definition video transmissions at 26.5~29.5GHz. The FPGA-based self-steering beamforming has been implemented using the proposed automatic beam tracking technique.
The similarity of the RF front-ends between wireless communications and radar systems drives integration communication sensing. An integrated mmW sensing system for intelligent vehicle driving is proposed here. implemented by photonic mixing frequency doubling via a sharing transmitter, which characterized simple compact structure. A 2.3-Gbit/s error-free BPSK signal at Ku-band successfully generated. Besides, accurate range velocity detection can be simultaneously realized frequency-doubled...
This Letter proposed a spectrally efficient polarization division multiplexed (PDM) twin single-sideband (twin-SSB) transmission scheme for direct-detection THz communication systems. The optical carrier of the twin-SSB is added at converter, rather than being generated transmitter as in traditional SSB scheme. Hence direct detection each branch PDM-twin-SSB signals receiver can be achieved, without active control. Moreover, field recovery enabled by Kramers–Kronig algorithm effectively...
We experimentally demonstrate a LAN-WDM access system with record bit rate of 2 Tb/s (250 Gbit/s×8) PS-PAM-8 signal joint equalization techniques to support the evolution future mobile fronthaul networks low cost.