Prof. Dr. Xuewen Shu
Wuhan National Laboratory for optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
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Academic Career Length
25Years (2002-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications10 December 2018 in Journal of the American Chemical Society
Journal Article
Zece ZhuDTDi Tian
Di Tian
PGPengli Gao
Pengli Gao
KWKe Wang
Ke WangYLYuce Li
Yuce LiQZQiang Zhao
Qiang Zhao +2
23 July 2018 in Optics Letters
Journal Article
For the first time, to the best of our knowledge, we observed the pulsating dissipative solitons in a mode-locked fiber laser at normal dispersion using the dispersive-Fourier transformation technology. The artificial saturable absorbers, as well as the birefringent filter formed by the nonlinear polarization rotation, make the polarization controller an effective component to adjust the laser state from stationary to pulsating. The pulsating dissipative solitons are accompanied with the spectrum breathing and oscillating structures due to the nonlinear pulse propagation. Our results can enhance the understanding of the pulsating solitons in the dissipative systems.
25 July 2016 in Optics Express
Journal Article
BHBo Huang
Bo Huang
Xuewen ShuA novel temperature- and strain-independent optical fiber torsion sensor based on a phase-shifted fiber Bragg grating (PSFBG) inscribed by the line-by-line (LbL) technique in a standard single-mode fiber with a femtosecond laser has been proposed and experimentally demonstrated. The strong birefringence created by the LbL inscription technique leads to the significant polarization splitting of the transmission peak of the PSFBG. By simply monitoring the variation of the amplitude difference between the two polarization-peaks, the fiber torsion angle and the fiber torsion direction can be simultaneously deduced without temperature and strain confusion. The torsion sensor exhibits a high torsion sensitivity of up to −1032.71 dB/(rad/mm), with the distinct advantages of low manufacture cost, small dimension (just ~1.72mm), and extremely robust and simple structure, which make it very attractive for practical applications. To the best of our knowledge, this is the smallest torsion sensor ever reported.
5 January 2017 in Optics Letters
Journal Article
FSFangcheng Shen
Fangcheng ShenCWChangle Wang
Changle Wang
ZSZhongyuan Sun
Zhongyuan Sun
KZKaiming Zhou
Kaiming ZhouLZLin Zhang
Lin Zhang
Xuewen ShuWe UV inscribe and characterize a long-period fiber grating with a period of 25 μm. A series of polarization-dependent dual-peak pairs can be seen in the transmission spectrum, even though only the symmetrical refractive index modification is introduced. The fabricated grating exhibits a lower temperature sensitivity compared with standard long-period gratings and an enhanced refractive index sensitivity of averaged from 1.315 to 1.395, which is more than four-fold higher than standard long-period gratings in this range. The full width at half-maximum of the fabricated grating is only about 0.6 nm, allowing for high-resolution sensing. Moreover, the grating period is so small that the attenuation dip corresponding to a high-order Bragg resonance can also be seen, which can act as a monitor of the unwanted perturbation to realize dual-parameter sensing.
28 August 2017 in Optics Express
Journal Article
A temperature sensor employing the Vernier effect generated from a cascaded fiber rings based microwave photonic filter (MPF) is proposed and experimentally demonstrated. The structure of the fiber ring is used as a sensing element as well as the sampling and delaying component of the MPF in our proposed sensing scheme. The sensing characteristics of both single ring and cascaded fiber rings based sensors have been studied and compared. By employing two cascaded fiber rings of slightly different length, the Vernier effect can be generated in the frequency response of the MPF. The sensing interrogation of the cascaded fiber rings based sensor is conducted by detecting the frequency shift of the upper envelope of the measured frequency response curve. The experimental results show that the sensitivity of the cascaded fiber rings based sensor can be improved about 30 times compared with the single fiber ring based temperature sensor.
21 February 2018 in Optics Express
Journal Article
PCPengcheng Chen
Pengcheng Chen
Xuewen ShuAn optical fiber Fabry-Perot probe sensor for high-temperature measurement is proposed and demonstrated, which is fabricated by inducing a refractive-index-modified-dot (RIMD) in the fiber core near the end of a standard single mode fiber (SMF) using a femtosecond laser. The RIMD and the SMF end faces form a Fabry-Perot interferometer (FPI) with a high-quality interference fringe visibility (>20dB). As a high-temperature sensor, such an FPI exhibits a sensitivity of 13.9 and 18.6 in the range of 100-500and 500-1000respectively. The fabrication process of this device is quite straightforward, simple, time saving, and the sensor features small size, ease of fabrication, low cost, assembly-free, good mechanical strength, and high linear sensitivity.
About Me
Xuewen Shu received his Ph.D. degree in optoelectronics from Huazhong University of Science and Technology, Wuhan, China, in 2000. From 2000 to 2001, he was a visiting research fellow in the Photonics Research Group at Aston University, Birmingham, U.K. Then, he spent two years with Indigo Photonics Ltd., UK, as a Photonics Development Engineer and a Senior Engineer, from 2001 to 2003. From 2003 to 2013, he worked as a Senior Research Fellow with the Aston Institute of Photonic Technologies at Aston University, UK. In 2013, he joined the Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology as a Full Professor. He has published over 300 papers in major international journals and conferences and also holds over 30 patents. He serves as an Associate Editor for IEEE Sensors Letters and other two journals. He was elected to Fellow of OPTICA (Formerly OSA) in 2023, Fellow of the Institute of Physics in 2021. His research interests include fiber gratings, optical fiber communications, fiber lasers and optical fiber sensors.