Zian (Michael) He joined Cisco System, in July 2012 as a Senior Hardware Engineer. His recent work has focused on video transmission system products (HFC), especially for optic link. Previous to these assignments, he worked for ZTE Corporation for four years to research NG-PON2/WDM-PON. Zian earned his B.S. from East China Normal University in 2002, and Ph. D., in Optics from Fudan University in 2008.