Jun Liu received his B.S. degree in optics from Harbin University of Science and Technology, Harbin, China, in 2009 and the Ph.D. degree in optical engineering from Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China, in 2014. He is now a post doctor at Shenzhen University. His current research interests include high power rare-earth doped and Raman fiber lasers, solid-state lasers, and nonlinear frequency-conversion technology.

J. Liu, D. Y. Shen, H. T. Huang, C. J. Zhao, X. Q. Zhang, and D. Y. Fan, “High-power and highly efficient operation of wavelength-tunable Raman fiber lasers based on volume Bragg gratings,” Optics Express 22(6), 6605 (2014).

J. Liu, D. Y. Shen, X. Q. Zhang, and D. Y. Fan, “High-power and stable dual-wavelength tunable Er,Yb fiber laser using volume Bragg gratings,” Applied Physics Express 7(3), 032702 (2014).

J. Liu, D. Y. Shen, H. T. Huang, X. Q. Zhang, L. Wang, and D. Y. Fan, “High power and narrow-linewidthEr,Yb fiber laser locked by a volume Bragg grating-pair,” IEEE Journal of Quantum Electronics 50(2), 88 (2014).

J. Liu, D. Y. Shen, H. T. Huang, X. Q. Zhang, D. Y. Tang, and D. Y. Fan,“ Highly efficient Tm:YAGceramiclaser based on the novel fiber-bulk hybrid configuration,” Applied Physics Express 6(3), 092107(2013).

J. Liu, D. Y. Shen, H. T. Huang, X. Q. Zhang, X. Liu, and D. Y. Fan,“Volume Bragg grating-based tunable Er,Yb fiber lasers covering the whole C- and L-band,” IEEE Photonics Technology Letters 25(15), 1488 (2013).

X. Q. Zhang, J. Liu, D. Y. Shen, X. F. Yang, D. Y. Tang, and D. Y. Fan, “Efficient Graphene Q-Switching of an In-Band Pumped Polycrystalline Er:YAG Ceramic Laser at 1617 nm”  IEEE Photonics Technology Letters 25(13), 1294 (2013).