为了测量87Sr原子光晶格钟的钟激光频率和控制红冷却激光及光晶格激光的绝对频率，实验建立了一套掺铒光纤光学频率梳系统，并将其锁定到了氢钟参考信号上。光梳的可见光测量部分对689、698及813 nm 等特定波长功率进行了优化(在同一扩谱支路中不同时获得)，其输出光谱功率大于120 mW，单点频率下的功率在2 nm 宽度时大于200 μW。实验得到的外激光和光梳梳齿拍频信号信噪比大于30 dB(在分辨率带宽300 kHz时观测)，锁定后频率跟踪秒级稳定度优于60 mHz。

For measurement of the 87Sr lattice clock probe laser frequency and controlling the red cooling laser and lattice magic wavelength etc, a frequency comb based on a mode-locked erbium fiber laser is built and locked to H-maser. The measurement realizes strong output at desired wavelengths, including 689, 698 and 813 nm (acquire at different time in one branch). The total visible spectrum power is about 120 mW and the power in the single frequency is more than 200 μW within 2 nm (full width half maximum). The beat signal between the comb tooth and the external laser with a signal-to-noise ratio is up to 30 dB (300 kHz resolution bandwidth). The tracking stability is better than 60 mHz at 1 s.