典型文献
All polarization-maintaining Er:fiber-based optical frequency comb for frequency comparison of optical clocks
文献摘要：
We demonstrate an optical frequency comb(OFC)based on a turnkey mode-locked laser with a figure-9-shape struc-ture and polarization-maintaining fibers,for the comparison of frequency among optical clocks with wavelengths of 698 nm,729 nm,1068 nm,and 1156 nm.We adopt a multi-branch approach in order to produce high power OFC signals at these specific wavelengths,enabling the signal-to-noise ratio of the beatnotes between the OFC and the clock lasers to exceed 30 dB at a resolution bandwidth of 300 kHz.This approach makes the supercontinuum spectra much easier to be generated than a single branch OFC.However,more out-of-loop fibers degrade the long-term frequency instability due to thermal drift.To minimize the thermal drift effect,we set the fiber lengths of different branches to be similar,and we stabilize the temperature as well.The out-of-loop frequency instability of the OFC due to the incoherence of the multi-branch is about 5.5×10-19 for 4000 s,while the in-loop frequency instability of fceo and that of fbeat are 7.5×10-18 for 1 s and 8.5×10-18 for 1 s,respectively.The turnkey OFC meets the requirement for the comparison of frequency between the best optical clocks.
文献关键词：
中图分类号：
作者姓名：
Pan Zhang;Yan-Yan Zhang;Ming-Kun Li;Bing-Jie Rao;Lu-Lu Yan;Fa-Xi Chen;Xiao-Fei Zhang;Qun-Feng Chen;Hai-Feng Jiang;Shou-Gang Zhang
作者机构：
National Time Service Center,Chinese Academy of Sciences,Xi'an 710600,China;University of the Chinese Academy of Sciences,Beijing 100049,China;Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China;School of Physics Sciences,University of Science and Technology of China,Hefei 230026,China
文献出处：
引用格式：
[1]Pan Zhang;Yan-Yan Zhang;Ming-Kun Li;Bing-Jie Rao;Lu-Lu Yan;Fa-Xi Chen;Xiao-Fei Zhang;Qun-Feng Chen;Hai-Feng Jiang;Shou-Gang Zhang-.All polarization-maintaining Er:fiber-based optical frequency comb for frequency comparison of optical clocks)[J].中国物理B（英文版）,2022(05):414-419
A类：
beatnotes,incoherence,fceo,fbeat
B类：
All,polarization,maintaining,Er,optical,frequency,comb,comparison,clocks,We,demonstrate,OFC,turnkey,mode,locked,figure,shape,struc,fibers,among,wavelengths,adopt,multi,approach,order,produce,high,power,signals,these,specific,enabling,noise,ratio,between,lasers,exceed,dB,resolution,bandwidth,kHz,This,makes,supercontinuum,spectra,much,easier,generated,than,single,However,more,loop,degrade,long,term,instability,due,thermal,drift,To,minimize,effect,set,different,branches,similar,stabilize,temperature,well,about,while,that,are,respectively,meets,requirement,best
AB值：
0.450064
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