About author:Ze Dong (zdong9@mail.gatech.edu) received his BS degree in electronic information science and technology from Hunan Normal University, China, in 2006. He received his PhD degree in electrical engineering from Hunan University, Changsha, in 2011. From 2009 to 2011, he was a PhD exchange scholar at Georgia Institute of Technology, Atlanta. He is currently a postdoctoral fellow in the School of Electrical and Computer Engineering, Georgia Institute of Technology. His research areas are broadband optical communication and optical coherent ccommunications. He has authored or co-authored more than 40 papers and conference proceedings on coherent optical transmission, passive optical networks, and broadband radio-over-fiber systems.