Youjian Song was born in Tianjin, China, in 1981. He received the B.S. and
Ph.D. degrees in optical engineering from Tianjin University, Tianjin, China, in
2004 and 2009, respectively. From 2009 to 2011, he was a Postdoctoral
Researcher with the Korea Advanced Institute of Science and Technology
(KAIST), Daejeon, Korea. He joined the faculty at Tianjin University in 2011
and he is now an Associate Professor. He is a member of IEEE Photonics Society and the
Optical Society of America (OSA). His research interests include novel
ultrafast lasers and optical frequency combs, timing jitter control of
femtosecond laser pulses and the applications in precision metrology.

He has published 16 SCI-indexed peer-reviewed journal articles as the first author or corresponding author. Eight of these papers were published at Optics Letters or Optics Express including one cover story. He has also co-authored over 40 SCI-indexed journal articles. His publications have reached over 660 citations till now (Web of Science). His H-index in Web-of-Science is 14 (Research ID: D-2437-2016).

Currently, He is PI of one on-going research project from the National Natural Science Foundation of China (NSFC). Moreover, as PI, he has already completed two NSFC projects and one project from the National High-tech R&D Program (863 program).

• Ultrafast Optics
• Optics Metrology

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• Haosen Shi.Quantum-limited timing jitter characterization of mode-locked lasers by asynchronous optical sampling.Optics Express.2017,25 (1):10-19
• Jungwon Kim.Ultralow-noise mode-locked fiber lasers and frequency combs: principles, status, and applications.Advances in Optic....2016,8 (3):465-540
• Haochen Tian.Long-term stable coherent beam combination of independent femtosecond Yb-fiber lasers.Optics Letters.2016,41 (22):5142-5145
• Haosen Shi.Effect of timing jitter on time-of-flight distance measurements using dual femtosecond lasers.Optics Express.2015,23 (11):14057-14069
• Youjian Song.On the origin of flicker noise in carrier-envelope phase stabilization.Optics Letters.2014,39 (24):6989-6992
• Yang Lan.Enhanced spectral breathing for sub-25 fs pulse generation in a Yb-fiber laser.Optics Letters.2013,38 (8):1292-1294
• Youjian Song.Timing jitter optimization of mode-locked Yb-fiber lasers toward the attosecond regime.Optics Express.2011,19 (15):14518-14525
• Youjian Song.Impact of pulse dynamics on timing jitter in mode-locked fiber lasers.Optics Letters.2011,36 (10):1761-1763