A5020156472- Advanced Photonic Communication Systems
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Antenna Design and Analysis
- Advanced Fiber Optic Sensors
- Energy Harvesting in Wireless Networks
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Microwave and Dielectric Measurement Techniques
- Semiconductor Quantum Structures and Devices
- Full-Duplex Wireless Communications
- Ultra-Wideband Communications Technology
- Radio Frequency Integrated Circuit Design
- Electronic Packaging and Soldering Technologies
- Photorefractive and Nonlinear Optics
- Gyrotron and Vacuum Electronics Research
- Advanced Power Amplifier Design
- Spectroscopy and Laser Applications
- Electromagnetic Compatibility and Measurements
- Millimeter-Wave Propagation and Modeling
- Photonic Crystals and Applications
- Electromagnetic Compatibility and Noise Suppression
- Optical Coatings and Gratings
Institute of Semiconductors
2016-2025
University of Chinese Academy of Sciences
2017-2025
Chinese Academy of Sciences
2016-2025
National Clinical Research Center for Digestive Diseases
2025
First Affiliated Hospital Zhejiang University
2025
Guangxi Maternal and Child Health Hospital
2025
Fuyang Normal University
2024
State Key Laboratory on Integrated Optoelectronics
2014-2023
Institute of Information Engineering
2021
China Shipbuilding Industry Corporation (China)
2021
This paper presents a review and discussion of the applications microwave photonic techniques functionalities to field optical fiber sensors. A specific end-to end model for its characterization is presented here first time that yields sensitivity different figures merit in terms measured variations. Experimental characterize these systems are two high-resolution discrete quasidistributed sensing illustrated. Future directions research also highlighted.
We present a reconfigurable microwave frequency measurement technique with adjustable range and resolution. The key novelty of the is employment stimulated Brillouin scattering, which results in tunable amplitude comparison function, leading to an proposed switchable between wideband narrow (~2 GHz) high resolution (±0.05 fixed wide (12 moderate (±0.25 GHz).
Realistic designs of broad-bandwidth metamaterial-inspired electric and magnetic antennas are characterized numerically. By augmenting their narrow bandwidth counterparts with internal non-Foster elements, active metamaterial unit cells introduced as near-field resonant parasitic (NFRP) elements. The driven NFRP elements in each presented case designed to achieve nearly complete matching the entire system a 50- Ω source without any network yield high radiation efficiencies over FBW <sub...
Several linear polarized photoconductive terahertz antennas are reported and compared. A bowtie-shaped antenna, which is a variation on the standard dipole presented. It has satisfactory (THz) radiation performance characteristics. This antenna combined with silicon-based lens an artificial magnetic conductor (AMC) to enhance its directivity properties. These provide baseline designs in our study. capacitively loaded introduced, naturally leads array implementation. The simulation results...
This paper presents a review and discussion of the directly modulated semiconductor lasers their applications to optical communications microwave photonics. A detailed comprehensive demonstration from development history specific techniques on measurement, analysis, packaging is provided for first time best our knowledge. few typical based are also illustrated, such as fiber communications, free-space Future directions research highlighted.
We report a photonic scheme to generate background-free frequency-doubled binary phase-coded microwave pulses. The key component is dual-polarization dual-parallel Mach-Zehnder modulator that used realize phase modulation and carrier-suppressed double second-order sideband at two orthogonal polarization states, respectively. π jump of the pulse dependent on polarity coding signal rather than its amplitude. Besides, generated pulses are free from baseband-modulated signals, because optical...
A comprehensive analysis is presented for investigating the effects of input nonlinearity on performance and broadband design continuous-mode class-F power amplifiers (PAs). New time-domain waveforms are derived considering output harmonic terminations operation. The equations show that typical fundamental load space a continuous PA must be reengineered in presence second-harmonic to new order achieve optimum versus varying impedance. For practical validation, impacts PAs first confirmed...
Thin‐film lithium niobate on insulator (LNOI) is a promising platform for optical communications, microwave photonics, and quantum technologies. While many high‐performance devices like electro‐optic modulators frequency comb sources have been achieved LNOI platform, it remains challenging to realize photodetectors (PDs) using simple low‐cost fabrication techniques. 2D materials are excellent candidates achieve photodetection since they feature strong light‐matter interaction, mechanical...
We describe a new method for extracting the intrinsic response of laser diode from S-parameters measured using calibrated vector network analyzer. The experimental results obtained are compared with those optical modulation and frequency subtraction method. Good agreement has been obtained, confirming validity accuracy. advantages obtaining characteristics conventional measurements
A broad-bandwidth, electrically small, near-field resonant parasitic (NFRP) dipole antenna has been designed, analyzed, and measured. Unlike conventional active external matching network approaches, a non-Foster component with negative reactance slope was incorporated into the NFRP element of an Egyptian-axe to significantly increase its bandwidth. The measurement results showed approximately 25.3 MHz 10 dB bandwidth around 300 for system ( <i xmlns:mml="http://www.w3.org/1998/Math/MathML"...
We propose and demonstrate a compact cost-effective photonic approach to generate arbitrarily phase-modulated microwave signals using conventional dual-drive Mach-Zehnder modulator (DDMZM). One arm (arm1) of the DDMZM is driven by sinusoidal signal whose power optimized suppress optical carrier, while other (arm2) coding signal. In this way, carrier from arm2 sidebands arm1 are combined together at output DDMZM. Binary phase-coded pulses which free baseband frequency components can be...
An electrically small rectenna was designed and tested at the global positioning system (GPS) L1 frequency (1.5754 GHz). The metamaterial-inspired near-field resonant parasitic antenna size (ka ∼ 0.467) its direct match to input impedance of rectifying circuit decreased whole 0.611). simulated measured efficiencies were, respectively, 75.7% 79.6% when power 0.0 dBm (1 mW). highest efficiency, 84.7%, achieved GPS for a 3.0 power. results are in good agreement.
We report a photonic approach to simultaneously realize frequency upconversion and phase coding of radio-frequency (RF) signal based on polarization manipulation optical signals. An intermediate (IF) is upconverted the local (LO) band using dual-polarization dual-parallel Mach–Zehnder modulator, while high-speed modulator used signal. The key advantage proposed method that no or electrical filters are required remove residual IF, LO, undesired downconverted signals, which ensures broad...
We propose a microwave photonic link to transmit dual-chirp waveform over fiber with compensation of dispersion-induced power fading. In center office (CO), we use polarization-dependent dual-parallel Mach-Zehnder modulator (DPMZM) which is driven by radio frequency (RF) carrier and baseband single-chirped realize carrier-suppressed dual-sideband (CS-DSB) modulation at two orthogonal polarization states. When the CS-DSB optical signal detected photodetector (PD) base station (BS), generated....
We report a novel approach to generating full-duty-cycle triangular waveforms based on microwave photonic filter (MPF) with negative coefficient. It is known that the Fourier series expansion of waveform has only odd-order harmonics. In this work, undesired even-order harmonics are suppressed by MPF periodic transmission response. A at fundamental frequency can be generated setting bias Mach-Zehnder modulator (MZM) quadrature point. However, it found broadband 90° phase shifter used after...
We report a photonic approach to generating radio-frequency (RF) waveforms based on dual-parallel Mach-Zehnder modulator (DPMZM) driven by sinusoidal RF signal. One of the sub-MZMs (MZM1) DPMZM is signal, whereas other sub-MZM (MZM2) has no In this way, powers even- and odd-order sidebands can be separately controlled adjusting bias MZM1. The power ratio between odd- (or even-) order tunable power. Moreover, phase optical carrier independently biases MZM2 parent MZM DPMZM, respectively....
We demonstrate a novel scheme to generate full-duty-cycle triangular microwave waveforms using an optoelectronic oscillator (OEO). The OEO produces high-quality local signal. Thus, external source, which is usually involved in orthodox approaches obviates the need. A polarization modulator both loop and photonic filter (MPF) structure. To waveform, undesired electrical harmonics are suppressed by MPF. proposed method theoretically analyzed experimentally verified. Triangular at fundamental...
Abstract The burgeoning volume of parameters in artificial neural network models has posed substantial challenges to conventional tensor computing hardware. Benefiting from the available optical multidimensional information entropy, intelligent is used as an alternative solution address emerging electrical computing. These limitations, terms device size and photonic integration scale, have hindered performance chips. Herein, ultrahigh density processing unit (OTPU), which grounded individual...