Zobrazeno 1 - 10
of 216
pro vyhledávání: '"ZUJIE FANG"'
Autor:
Xiaoqiong Qin, Zujie Fang, Kang Ying, Zhidan Ding, Di Wang, Fang Wei, Fei Yang, Qing Ye, Ronghui Qu, Haiwen Cai
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-9 (2018)
A novel slow-light reflector composed of a double-ring resonator with a uniform fiber Bragg grating (FBG) incorporated is proposed in this paper, which can be used as a mirror of narrow-linewidth fiber laser, based on its enlarged group delay, and as
Externí odkaz:
https://doaj.org/article/3716e543abab4610916d9375a0ac9580
Autor:
Hanrong Zheng, Zujie Fang, Zhaoyong Wang, Bin Lu, Yulong Cao, Qing Ye, Ronghui Qu, Haiwen Cai
Publikováno v:
Sensors, Vol 18, Iss 2, p 409 (2018)
It is a basic task in Brillouin distributed fiber sensors to extract the peak frequency of the scattering spectrum, since the peak frequency shift gives information on the fiber temperature and strain changes. Because of high-level noise, quadratic f
Externí odkaz:
https://doaj.org/article/ff2f604df7d34c32893b4a384f4671ee
Publikováno v:
Applied optics. 61(13)
The delayed self-heterodyne and self-homodyne (DSH) method is widely used for measuring the line shapes of high coherent lasers. This method results in an autocorrelation of a laser line under the condition of a delay that is much larger than its coh
Autor:
Zheng Hanrong, Lu Bin, Wang Zhaoyong, Cao Yulong, Qing Ye, Ronghui Qu, Haiwen Cai, Zujie Fang
Publikováno v:
IEEE Sensors Journal. 19:163-170
Performances of centroid analysis (CA) used for extracting Brillouin frequency shift (BFS) from noisy signals are studied in this paper. The variance of extracted BFS, i.e., the minimum detectable BFS, is deduced as a function of signal-to-noise rati
Autor:
Fang Wei, Kang Ying, Xiaoqiong Qin, Haiwen Cai, Zhidan Ding, Di Wang, Ronghui Qu, Qing Ye, Zujie Fang, Fei Yang
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-9 (2018)
A novel slow-light reflector composed of a double-ring resonator with a uniform fiber Bragg grating (FBG) incorporated is proposed in this paper, which can be used as a mirror of narrow-linewidth fiber laser, based on its enlarged group delay, and as
Publikováno v:
Computational Materials Science. 129:178-183
CO 2 /H 2 O intercalation causes changes in the elastic mechanical properties of clay. This phenomenon is critical to geologic carbon sequestration (GCS) and enhancing oil rate (EOR) via CO 2 adsorption. In this work, the elastic stiffness and hydros
Publikováno v:
Chinese Optics Letters. 13:100603-100606
A novel distributed passive vehicle tracking technology is proposed and demonstrated. This technology is based on a phase-sensitive optical time domain reflectometer (Φ-OTDR) that can sense and locate vibrations. Two algorithms, dynamic frequency-sp
This book systematically introduces the single frequency semiconductor laser, which is widely used in many vital advanced technologies, such as the laser cooling of atoms and atomic clock, high-precision measurements and spectroscopy, coherent optica
Autor:
Zhidan Ding, Haiwen Cai, Xiaoqiong Qin, Qing Ye, Ronghui Qu, Wang Zhaoyong, Fei Yang, Zujie Fang
Publikováno v:
2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR).
A novel slow-light reflector composed of a double ring resonator with a fiber Bragg grating (FBG) incorporated is proposed in this paper, which can be used as a mirror of narrow linewidth fiber laser. Due to the Vernier effect, it is shown that the a
Autor:
Zheng Hanrong, Lu Bin, Qing Ye, Haiwen Cai, Zhengqing Pan, Howell Zhao, Wang Zhaoyong, Ronghui Qu, Zujie Fang
Publikováno v:
SPIE Proceedings.
High-speed railway is being developed rapidly; its safety, including infrastructure and train operation, is vital. This paper presents a railway-subgrade vibration monitoring scheme based on phase-sensitive OTDR for railway safety. The subgrade vibra