Qingxia Piao
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Qingxia Piao has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Chengliang Zhu
College of Information Science and Engineering, Northeastern University, Shenyang, China
2 shared publications - Hongpu Li
Shizuoka University
2 shared publications - Lei Wang
College of Information Science and Engineering, Northeastern University, Shenyang, China
2 shared publications - Yong Zhao
Northeastern University
2 shared publications - Zhenhao Bing
College of Information Science and Engineering, Northeastern University, Shenyang, China
2 shared publications - Hua Zhao
Nanjing Normal University
1 shared publication
Latest Publications
- 16 November 2022
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 41 (5) , 1533-1538
Ultra-Wideband OAM Mode Generator Based on a Helical Grating Written in a Graded-Index Few-Mode Fiber
An ultra-wideband orbital-angular-momentum (OAM) mode generator has been proposed and demonstrated both theoretically and experimentally, which is based on a helical long period fiber grating (HLPG) but written in a graded-index few-mode fiber (GIFMF). Unlike all the HLPG-based broadband OAM generators reported to date, where the utilized HLPG (fabricated only in step-index fibers) all were operated at wavelengths very close to the dispersion-turning point (DTP), the GIFMF-based HLPG proposed in this study is, however, operated at wavelengths far from its DTP, which provides a new and robust method enabling to produce a ultra-wideband OAM mode generator with an ultra-high conversion-efficiency and yet with a great flexibility in controlling the central wavelength of itself. As a typical example, the first-order OAM mode generator with a central wavelength of ∼1510 nm, a bandwidth of ∼235 nm, and a conversion-efficiency larger than 99% (∼20.7 dB) has been successfully obtained. To the best of our knowledge, this is the first report for practical demonstration of the GIFMF-based HLPG.
- 16 November 2022
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 41 (5) , 1533-1538
Ultra-Wideband OAM Mode Generator Based on a Helical Grating Written in a Graded-Index Few-Mode Fiber
An ultra-wideband orbital-angular-momentum (OAM) mode generator has been proposed and demonstrated both theoretically and experimentally, which is based on a helical long period fiber grating (HLPG) but written in a graded-index few-mode fiber (GIFMF). Unlike all the HLPG-based broadband OAM generators reported to date, where the utilized HLPG (fabricated only in step-index fibers) all were operated at wavelengths very close to the dispersion-turning point (DTP), the GIFMF-based HLPG proposed in this study is, however, operated at wavelengths far from its DTP, which provides a new and robust method enabling to produce a ultra-wideband OAM mode generator with an ultra-high conversion-efficiency and yet with a great flexibility in controlling the central wavelength of itself. As a typical example, the first-order OAM mode generator with a central wavelength of ∼1510 nm, a bandwidth of ∼235 nm, and a conversion-efficiency larger than 99% (∼20.7 dB) has been successfully obtained. To the best of our knowledge, this is the first report for practical demonstration of the GIFMF-based HLPG.
- 22 April 2022
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. 71 (00189456) , 1-8
Reflective-Type Multiparameter Sensor Based on a Paired Helical Fiber Gratings and a Trapezoid-Like Microcavity
A reflective-type fiber sensor allowing the simultaneous measurements of directional torsion, strain, and temperature is proposed and experimentally demonstrated, which is realized by using a paired helical long-period fiber gratings and a trapezoid-like microcavity (PHLPGs-TLMC). With aid of the proposed sensor, the crosstalk effects among torsion, strain, and temperature can be well distinguished. The measurement resolutions for such three parameters are 0.017 rad/m,$2.1~\mu \varepsilon $ , and$0.452~^{\circ }\text{C}$ , respectively, which are competitive to those of the fiber-based sensors. In comparison with the transmission-type sensors reported to date, the proposed sensor is particularly used in reflection, which provides more flexibilities for sensor’s installation and is suitable for real-time and in-site measurements also. The proposed sensor could be found potential applications in structural health monitoring of the buildings, the bridges, the ships, the aircrafts, and so on.- 22 April 2022
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. 71 (00189456) , 1-8
Reflective-Type Multiparameter Sensor Based on a Paired Helical Fiber Gratings and a Trapezoid-Like Microcavity
A reflective-type fiber sensor allowing the simultaneous measurements of directional torsion, strain, and temperature is proposed and experimentally demonstrated, which is realized by using a paired helical long-period fiber gratings and a trapezoid-like microcavity (PHLPGs-TLMC). With aid of the proposed sensor, the crosstalk effects among torsion, strain, and temperature can be well distinguished. The measurement resolutions for such three parameters are 0.017 rad/m,$2.1~\mu \varepsilon $ , and$0.452~^{\circ }\text{C}$ , respectively, which are competitive to those of the fiber-based sensors. In comparison with the transmission-type sensors reported to date, the proposed sensor is particularly used in reflection, which provides more flexibilities for sensor’s installation and is suitable for real-time and in-site measurements also. The proposed sensor could be found potential applications in structural health monitoring of the buildings, the bridges, the ships, the aircrafts, and so on.