Stable Narrow Linewidth 689nm Diode Laser for the Second Stage Cooling and Trapping of Strontium Atoms
LI Ye1, LIN Yi-Ge1,3, ZHAO Yang2, WANG Qiang1, WANG Shao-Kai1, YANG Tao3, CAO Jian-Ping1, LI Tian-Chu1, FANG Zhan-Jun1, ZANG Er-Jun1
1Division of Electricity and Quantum Metrology, National Institute of Metrology, Beijing 100013 2Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084 3Department of optical Engineering, Beijing Institute of Technology, Beijing 100081
Stable Narrow Linewidth 689nm Diode Laser for the Second Stage Cooling and Trapping of Strontium Atoms
LI Ye1, LIN Yi-Ge1,3, ZHAO Yang2, WANG Qiang1, WANG Shao-Kai1, YANG Tao3, CAO Jian-Ping1, LI Tian-Chu1, FANG Zhan-Jun1, ZANG Er-Jun1
1Division of Electricity and Quantum Metrology, National Institute of Metrology, Beijing 100013 2Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084 3Department of optical Engineering, Beijing Institute of Technology, Beijing 100081
We report stable narrow linewidth laser systems based on self-developed Littman configuration external cavity diode lasers (ECDLs). The frequency of the ECDL is stabilized to a high fineness ultralow-expansion glass reference cavity with the Pound-Drever-Hall technique. By heterodyne beating of two identical systems, we conclude that the linewidth of each ECDL is reduced to lower than 150 Hz and its frequency stability reaches 4.3× 10-14 at an averaging time of 1 s, the averaged long-term frequency drift is less than 0.2 Hz/s over 30 h measurement time.
We report stable narrow linewidth laser systems based on self-developed Littman configuration external cavity diode lasers (ECDLs). The frequency of the ECDL is stabilized to a high fineness ultralow-expansion glass reference cavity with the Pound-Drever-Hall technique. By heterodyne beating of two identical systems, we conclude that the linewidth of each ECDL is reduced to lower than 150 Hz and its frequency stability reaches 4.3× 10-14 at an averaging time of 1 s, the averaged long-term frequency drift is less than 0.2 Hz/s over 30 h measurement time.
LI Ye;LIN Yi-Ge;ZHAO Yang;WANG Qiang;WANG Shao-Kai;YANG Tao;CAO Jian-Ping;LI Tian-Chu;FANG Zhan-Jun;ZANG Er-Jun. Stable Narrow Linewidth 689nm Diode Laser for the Second Stage Cooling and Trapping of Strontium Atoms[J]. 中国物理快报, 2010, 27(7): 74208-074208.
LI Ye, LIN Yi-Ge, ZHAO Yang, WANG Qiang, WANG Shao-Kai, YANG Tao, CAO Jian-Ping, LI Tian-Chu, FANG Zhan-Jun, ZANG Er-Jun. Stable Narrow Linewidth 689nm Diode Laser for the Second Stage Cooling and Trapping of Strontium Atoms. Chin. Phys. Lett., 2010, 27(7): 74208-074208.
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2010, Vol. 27 
