中文摘要：

光学频率梳是光钟的重要组成部分,相噪是光梳的基本特性。文章从光梳相噪的描述方法入手,对光学频率梳相噪产生的几种常见来源及相噪抑制技术进行了综述,详细介绍了业已实现的几种低相噪光学频率梳。文末展望了未来低相噪光学频率梳的发展新趋势。

英文摘要：

Phase noise is a fundamental characteristic of an optical frequency comb（OFC）. Low phase noise OFCs are powerful tools for the comparison of different optical clocks,precision spectroscopy, and time and frequency transfer. After a description of the phase noise, we summarize the noise sources affecting OFCs and the techniques for suppressing the noise, and present several low phase noise OFC systems developed in our lab. Finally, we review the prospects for future developments.