Electronic Engineering

  • Name:Liu, Qingwen
  • Title:Associate Prof.
  • Office:5-108, SEIEE
  • Office Phone:86-21-34204316
  • Email:liuqingwen[at]sjtu.edu.cn
  • Website:cip.sjtu.edu.cn

Research Field

Optical fiber sensing
Laser technique

Education

2001 - 2005, Bachelor, Tianjin University
2005 - 2007, Master, Tianjin University
2009 - 2012, Ph.D, The University of Tokyo

Work experience

2012-2015, Assistant Professor, Shanghai Jiao Tong University
2016 - Present, Associate Professor, Shanghai Jiao Tong University

Research

High performance optical fiber sensor;
Distributed fiber sensor;
Light detection and ranging
Ultra-fast laser and applications.

Awards and Honors

Teaching

Optical fiber communication

Publications

1. Dian Chen, Qingwen Liu, and Zuyuan He, “Phase-detection distributed fiber-optic vibration sensor without fading-noise based on time-gated digital OFDR,” Optics Express 25(7), 8315-8325 (2017) doi:10.1364/OE.25.008315
2. Dian Chen, Qingwen Liu, Xinyu Fan, and Zuyuan He, “Distributed Fiber-optic Acoustic Sensor with Enhanced Response Bandwidth and High Signal-to-noise Ratio,” IEEE Journal of Lightwave Technology 35(10), 2037-2043 (2017) DOI: 10.1109/JLT.2017.2657640
3. Zuyuan He, Qingwen Liu, Jiageng Chen, and Tomochika Tokunaga, “Ultrahigh Resolution Fiber Bragg Grating Sensors for Quasi-static Crustal Deformation Measurement,” IEEE Journal of Lightwave Technology, DOI: 10.1109/JLT.2016.2591724. (Tutorial Review)
4. Jiageng Chen, Qingwen Liu, Xinyu Fan, and Zuyuan He, “Sub-Nano-Strain Multiplexed Fiber Optic Sensor Array for Quasi-Static Strain Measurement,” IEEE Photonics Technology Letters 28(21):2311-2314 (2016).
5. Jiageng Chen, Qingwen Liu, Xinyu Fan, and Zuyuan He, “Ultra-high resolution optical fiber strain sensor using dual Pound-Drever-Hall feedback loops,” Optics Letters 41(5): 1066-1069 (2016).
6. Qingwen Liu, Xinyu Fan, and Zuyuan He, “Time-gated digital optical frequency domain reflectometry with 1.6-m spatial resolution over entire 110-km range,” Optics Express 23(20): 25988-25995 (2015).
7. Qingwen Liu, Zuyuan He, and Tomochika Tokunaga, “Sensing the earth crustal deformation with nano-strain resolution fiber-optic sensors,” Optics Express 23(11): A428-A436 (2015).

Others