Jinlong Yu
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View article: Low-Finesse Fabry–Perot Cavity Design Based on a Reflective Sphere
Low-Finesse Fabry–Perot Cavity Design Based on a Reflective Sphere Open
Low-finesse Fabry–Perot (F–P) cavities, widely applied in the field of micro-displacement measurement, offer significant advantages in reducing the influence of higher-order reflections and improving the accuracy of measurement systems. Ge…
View article: A Vibration Signal Detection System Based on Double Intensity Modulation
A Vibration Signal Detection System Based on Double Intensity Modulation Open
The measurement system proposed in this paper, based on double intensity modulation, can achieve the detection and recovery of vibration signals. The system uses a Mach–Zehnder modulator to modulate the intensity of the laser light before …
View article: Performance Improvement by FRFT-OFDM for Visible Light Communication and Positioning Systems
Performance Improvement by FRFT-OFDM for Visible Light Communication and Positioning Systems Open
In indoor visible light communication (VLC) and visible light positioning (VLP) systems, the performance of conventional orthogonal frequency-division multiplexing (OFDM) schemes is often compromised due to the nonlinear characteristics an…
View article: Multi-Wavelength Narrow-Spacing Laser Frequency Stabilization Technology Based on Fabry-Perot Etalon
Multi-Wavelength Narrow-Spacing Laser Frequency Stabilization Technology Based on Fabry-Perot Etalon Open
Classical frequency-stabilized lasers have achieved high-frequency stability and reproducibility; however, their extensive wavelength spacing limits their utility in various scenarios. This study introduces a novel frequency-stabilized las…
View article: A Practicable Optoelectronic Oscillator with Ultra-Low Phase Noise
A Practicable Optoelectronic Oscillator with Ultra-Low Phase Noise Open
In this paper, an optoelectronic oscillator (OEO) with ultra-low phase noise and high stability based on the injection-locked and phase-locked loop is proposed. In theory, the injection-locked frequency range of the injection signal is stu…
View article: Microwave Photonic Frequency Multiplier with Low Phase Noise Based on an Optoelectronic Oscillator
Microwave Photonic Frequency Multiplier with Low Phase Noise Based on an Optoelectronic Oscillator Open
A microwave photonic frequency multiplier with low phase noise based on an optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. In this scheme, a dual-parallel Mach–Zehnder modulator (DPMZM) is employed to generate …
View article: A Superimposed Codebook Design for Downlink Sparse Code Multiple Access Visible Light Communication System
A Superimposed Codebook Design for Downlink Sparse Code Multiple Access Visible Light Communication System Open
The capacity performance of visible light communication (VLC) systems can be improved by using sparse code multiple access (SCMA). Since SCMA is a codebook-based multiple access scheme, the design of the codebook is crucial. SCMA codebook …
View article: Generation of a Flat Optical Frequency Comb via a Cascaded Dual-Parallel Mach–Zehnder Modulator and Phase Modulator without Using the Fundamental Tone
Generation of a Flat Optical Frequency Comb via a Cascaded Dual-Parallel Mach–Zehnder Modulator and Phase Modulator without Using the Fundamental Tone Open
Under the conventional scheme to generate an optical frequency comb (OFC) using an electro-optic modulator (EOM), the frequency interval of the OFC is determined via the frequency of the fundamental tone of the radio frequency (RF) driving…
View article: Hybrid Positioning Algorithm for Tilted Receiver Using RSS and TDOA with Gaussian Process
Hybrid Positioning Algorithm for Tilted Receiver Using RSS and TDOA with Gaussian Process Open
In the visible light positioning (VLP) system, the received signal strength (RSS) algorithm has a better signal noise ratio performance than the time difference of arrival (TDOA) algorithm, while the RSS algorithm needs to work under the c…
View article: Nanometer-scale displacement measurement based on an orthogonal dual Michelson interferometer
Nanometer-scale displacement measurement based on an orthogonal dual Michelson interferometer Open
In this Letter, we propose a simple structure of an orthogonal type double Michelson interferometer. The orthogonal detection method overcomes the problems of uneven ranging sensitivity and the inability of traditional interferometers to d…
View article: Demonstration of Performance Improvement in Multi-User NOMA VLC System Using Joint Transceiver Optimization
Demonstration of Performance Improvement in Multi-User NOMA VLC System Using Joint Transceiver Optimization Open
The bit error ratio (BER) performance of a non-orthogonal multiple access (NOMA) visible light communication (VLC) system is poor due to the unequal distances between adjacent points in the superposition constellation (SC). In this paper, …
View article: Long-range, high-precision, and high-speed absolute distance measurement based on alternately oscillating optoelectronic oscillators
Long-range, high-precision, and high-speed absolute distance measurement based on alternately oscillating optoelectronic oscillators Open
We propose an absolute distance measurement method using alternately oscillating optoelectronic oscillators (OEOs) with high speed, high precision, and long range, and describe the dynamic characteristics of the measurement system. Measure…
View article: Long-range, high-precision absolute distance measurement technology based on alternately oscillating optoelectronic oscillator
Long-range, high-precision absolute distance measurement technology based on alternately oscillating optoelectronic oscillator Open
Absolute distance measurement plays an important role in many areas, such as aerospace and scientific research. Traditional measurement methods generally cannot meet requirements for long-range and high-precision at the same time. In this …
View article: Photonic microwave waveform generation based on dual-wavelength time domain synthesis technology
Photonic microwave waveform generation based on dual-wavelength time domain synthesis technology Open
Microwave waveforms, such as square waveforms, sawtooth waveforms and triangle waveforms are widely used in radar communication, electronic measurement and medical imaging and so on. Using photonic microwave technology to generate arbitrar…
View article: Performance Improvement of M-QAM OFDM-NOMA Visible Light Communication Systems
Performance Improvement of M-QAM OFDM-NOMA Visible Light Communication Systems Open
2018 IEEE Global Communications Conference (GLOBECOM), 09-13 December 2018, Abu Dhabi, United Arab Emirates
View article: Performance improvement of NOMA visible light communication system by adjusting superposition constellation: a convex optimization approach
Performance improvement of NOMA visible light communication system by adjusting superposition constellation: a convex optimization approach Open
Non-orthogonal multiple access (NOMA) can increase the overall spectral efficiency of visible light communication (VLC) system. In this paper, we proposed a novel scheme to improve the bit error rate (BER) performance of a two-user NOMA VL…
View article: Accuracy analysis and improvement of visible light positioning based on VLC system using orthogonal frequency division multiple access
Accuracy analysis and improvement of visible light positioning based on VLC system using orthogonal frequency division multiple access Open
In this paper, we proposed a system that realized simultaneously visible light positioning (VLP) and visible light communications (VLC) in the same band by using orthogonal frequency division multiple access (OFDMA). This system used the p…
View article: THz photonic wireless links with 16-QAM modulation in the 375-450 GHz band
THz photonic wireless links with 16-QAM modulation in the 375-450 GHz band Open
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 as 80 Gbit/s by exploiting four THz channels with 5 Gbaud 16-QAM b…
View article: THz Wireless Transmission Systems Based on Photonic Generation of Highly Pure Beat-Notes
THz Wireless Transmission Systems Based on Photonic Generation of Highly Pure Beat-Notes Open
In this paper, a terahertz (THz) wireless communication system at 400 GHz with various modulation formats [on–off keying (OOK), quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (16-QAM), and 32-quadrature amplitude …
View article: A Novel Highly Stable Dual-Wavelength Short Optical Pulse Source Based on a Dual-Loop Optoelectronic Oscillator With Two Wavelengths
A Novel Highly Stable Dual-Wavelength Short Optical Pulse Source Based on a Dual-Loop Optoelectronic Oscillator With Two Wavelengths Open
A novel scheme of a highly stable dual-wavelength short optical pulse source (SOPS) based on a dual-loop optoelectronic oscillator (OEO) with two wavelengths is demonstrated. The structure of the dual-loop OEO with two wavelengths can supp…