These authors contributed equally to this work

ChuanWANG received the B.S. degree in the College of Optoelectronics Science and Engineering from Huazhong University of Science and Technology, Wuhan, China, in 2012. She is currently working toward the M.S. degree in the School of Optical and Electronic Information, Huazhong University of Science and Technology. Her research interests include simulation and designing of optical devices, such as optical buffers and system performance analyze of optical network.

Xi ZHANG received the M.S. degrees in the College of Optoelectronics Science and Engineering from Huazhong University of Science and Technology, Wuhan, China, in 2010 and 2012. His field of research is optical devices such as the sub-wavelength gratings. He works in the Wireless Maintenance Center in Wuhan Branch of China Telecom Corporation Ltd.

Xiaoying Liu is an associate professor in the School of Optical and Electronic Information at Huazhong University of Science and Technology, Wuhan, China. She was a Postdoctoral Member of the College of Optoelectronics Science and Engineering at Huazhong University of Science and Technology in 2003. Her current research include orthogonal frequency division multiplexing (OFDM) transmissions, advanced modulation formats, micro-ring resonators, all-optical tunable filter, optical fiber sensor and wireless sensor network.

Yang Yue is hardware engineer at Juniper Networks in USA. He received the Ph.D. degree in Electrical Engineering from University of Southern California, Los Angeles, California, USA, in 2012. Dr. Yue's current research interests include integrated optical waveguide based devices, on-chip optical interconnection, specialty optical fibers, fiber and free-space optical communications, EUV lithography and optical proximity correction. He has published over 100 peer-reviewed journal papers and conference proceedings. Dr. Yue is the Editor Board Member for “The Scientific World Journal” and “The Open Access Journal of Science and Technology”. He also served as committee member and reviewer for international conferences and journals.

Yong Mei received the M.S. degree in the School of Optical and Electronic Information from Huazhong University of Science and Technology, Wuhan, China, in 2014. His research interests include simulation and designing of optical devices, such as optical buffers and system performance analyze of optical network.

Peng Li received the B.S. degree from Harbin University of Science and Technology, Harbin, China, in 2013. He is currently working toward the M.S. degree in the School of Optical and Electronic Information of Huazhong University of Science and Technology, Wuhan, China. His current research interests are coherent optical orthogonal frequency division multiplexing (CO-OFDM).

Jia Du received the B. S. degree in Optical Information Science and Technology from the East China of Jiao Tong University in 2013. He is currently working toward the M.E. degree in the School of Optical and Electronic Information of Huazhong University of Science and Technology,Wuhan, China. His current research interests are coherent optical orthogonal frequency division multiplexing (CO-OFDM), optic fiber sensor.