scholarly journals Observation of Rb two-photon absorption directly excited by an erbium-fiber-laser-based optical frequency comb via spectral control

2014 ◽  
Vol 89 (4) ◽  
Author(s):  
Jiutao Wu ◽  
Dong Hou ◽  
Zhengyu Qin ◽  
Zhigang Zhang ◽  
Jianye Zhao
Keyword(s):  
Fiber Laser ◽  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Photon Absorption ◽  
Optical Frequency ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Spectral Control

scholarly journals The Optimization of Cold Rubidium Atom Two-Photon Transition Excitation with an Erbium-Fiber Optical Frequency Comb

2019 ◽  
Vol 9 (5) ◽  
pp. 921
Author(s):  
Haoyuan Lu ◽  
Jianxiao Leng ◽  
Jianye Zhao
Keyword(s):  
Laser Cooling ◽  
Repetition Rate ◽  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Rubidium Atom ◽  
Two Photon ◽  
Photon Transition ◽  
Fiber Optical ◽  
Fine Tune

We demonstrated the observation of cold rubidium atom two-photon transition excitation by a fiber optical frequency comb. In addition to this, we optimized the repetition rate of optical frequency comb to enhance two-photon intensity by controlling cavity length and pump source of optical comb. This technique can fine tune repetition rate to corresponding stepwise two-photon transition resonance frequency and improve the transition intensity by three times. This method is useful in Doppler laser cooling and detection of macromolecules.

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