Femtosecond lasers and optical frequency combs have become indispensable precision technologies, extending from fundamental science to high-end manufacturing. My research focuses on femtosecond optical frequency comb sources with ultra-low quantum noise and their applications in precision measurement. I have led projects funded by the National Natural Science Foundation of China, the National Key Research and Development Program, and the National 863 Program. As the first or corresponding author, I have published over 60 academic papers in high-level international optics journals, including Optica, Optics Letters, and Optics Express. Among these, three papers were selected as cover articles, and two were designated as ESI highly cited papers. I have co-authored over 100 papers, which have accumulated more than 3,500 citations, with an h-index of 35 (Google Scholar). I have also delivered multiple invited talks at international conferences. I am currently a Senior Member of the Chinese Optical Society, OPTICA, and IEEE, and serve as a committee member for international conferences such as CLEO and the Ultrafast Optics Conference.