Signal-to-Noise Ratio Enhancement Based on Empirical Mode Decomposition in Phase-Sensitive Optical Time Domain Reflectometry Systems

by Zengguang Qin, Hui Chen, Jun Chang
Published 2017-08-01

Detection Performance Improvement of Distributed Vibration Sensor Based on Curvelet Denoising Method

by Zengguang Qin, Hui Chen, Jun Chang
Published 2017-06-01

Modulation Index Adjustment for Recovery of Pure Wavelength Modulation Spectroscopy Second Harmonic Signal Waveforms

by Wei Wei, Jun Chang, Qiang Wang, Zengguang Qin
Published 2017-01-01

Quartz-Enhanced Photoacoustic Spectroscopy with Right-Angle Prism

by Yongning Liu, Jun Chang, Jie Lian, Zhaojun Liu, Qiang Wang, Zengguang Qin
Published 2016-02-01

Acousto-Optic Q-Switched Fiber Laser-Based Intra-Cavity Photoacoustic Spectroscopy for Trace Gas Detection

by Qinduan Zhang, Jun Chang, Qiang Wang, Zongliang Wang, Fupeng Wang, Zengguang Qin
Published 2017-12-01

A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection

by Xi Chen, Jun Chang, Fupeng Wang, Zongliang Wang, Wei Wei, Yuanyuan Liu, Zengguang Qin
Published 2016-10-01

Tunable Stokes Laser Based on KTiOPO₄ Crystal

by Zecheng Wang, Xingyu Zhang, Zhenhua Cong, Zhaojun Liu, Xiaohan Chen, Zengguang Qin, Na Ming, Quanxin Guo
Published 2020-10-01

Injection-Seeded Terahertz Parametric Oscillator with a Ring-Cavity Configuration

by Feilong Gao, Yuan Li, Zhenhua Cong, Xingyu Zhang, Zhaojun Liu, Xiaohan Chen, Zengguang Qin, Zecheng Wang, Na Ming
Published 2020-08-01

High Average Power Diode-Side-Pumped Intracavity Terahertz Parametric Source Based on Stimulated Polariton Scattering in RbTiOPO₄ Crystal

by Feilong Gao, Xingyu Zhang, Zhenhua Cong, Zhaojun Liu, Xiaohan Chen, Zengguang Qin, Peng Wang, Jinjin Xu, Weitao Wang, Shaojun Zhang
Published 2020-01-01

The Investigation on the Beam Spatial Intensity Distributions in the Injection-Seeded Terahertz Parametric Generator

by Jie Zang, Dong Wu, Xingyu Zhang, Zhenhua Cong, Zengguang Qin, Xiaohan Chen, Zhaojun Liu, Ping Li, Feilong Gao, Chenyang Jia, Yue Jiao, Weitao Wang, Shaojun Zhang
Published 2019-01-01