Dr. Nan Hua is an associate professor at Tsinghua University, Beijing, China. He received his B.S and Ph.D. degrees from Tsinghua University, in 2003 and 2009, respectively. In 2008, he went to the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (HHI) in Germany to conduct research studies. Since 2011, he joined the Department of Electronics Engineering, Tsinghua University to engage in research related to optical switching networks. The research areas include control and management of heterogeneous optical networks, all-optical switching technology, data center optical networks, optical/wireless network integration technology, time synchronization networks, and digital twin technology for optical networks. The research achievements have been awarded the First Prize for Technological Progress by the Electronic Society, as well as the Best Paper Award at six important international academic conferences such as ACP and OECC. He has undertaken or participated as a key member in more than 20 national-level projects, published over 100 high-level academic papers, which have been cited more than 1,500 times; obtained more than 20 authorized invention patents, and delivered over 30 invited speeches at international academic conferences. He has also served as a TPC member for several international conferences and as a reviewer for journals such as IEEE JLT, IEEE JOCN, IEEE JSAC, IEEE CL, IEEE PTL, IEEE/ACM TON, OSA Optics Express, SPIE Optical Engineering, IET Communications, PNC, and OSN.