I am currently a Postdoctoral Research Associate at JILA, University of Colorado at Boulder, supervised by Prof. Jun Ye. I graduated from Institute of Physics, Chinese Academy of Sciences with a Ph. D. degree in optical physics, in 2009. I was Postdoctoral Research Associate, from 2009 to 2012, at SYRTE, Observatoire de Paris. I was a guest scientist at PTB from February to March of 2014. Frequency comb and ultrastable laser are core parts in my 10 years research experiences in world-class labs, including five years as a postdoctoral researcher and five years as Ph.D. research assistant.