Progress report on development of ultrastable lasers for 27Al+ optical clock

Yingxin Luo,Bing Ouyang,Xiaoyi Zeng,Ai Deng,Chengbin Qin,Ke Deng,Jie Zhang,Zehuang Lu,Jun Luo

European Frequency and Time Forum & International Frequency Control Symposium（2013）

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摘要

The recent progress of ultra-stable lasers used for 27Al+ optical frequency standards is presented. Two diode lasers are phase stabilized to ultra-stable ULE cavities, which will be frequency quadrupled to UV as the 267.4 nm 27Al+ clock laser with sub-Hz level linewidth and the 267.0 nm shelving laser with 100 Hz level linewidth for fast detection respectively. In this report, less than 3 Hz linewidth of IR lasers at 1068 nm are achieved via Pound-Drever-Hall (PDH) stabilization for the 100 Hz shelving laser application. Dynamic analysis of cavity sensitivity to vibration is also presented.

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关键词

IR lasers,measurement by laser beam,dynamic analysis,ultrastable lasers,27Al+ optical clock,sub-Hz level linewidth,Pound-Drever-Hall stabilization,optical clock,frequency standards,atomic clocks,wavelength 267.4 nm,ultrastable laser,27Al+ optical frequency standards,27Al+,vibration,aluminium,wavelength 1068 nm,semiconductor lasers,frequency 100 Hz,cavity sensitivity,diode lasers

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