典型文献
Coherent Optical Frequency Transfer via a 490 km Noisy Fiber Link
文献摘要：
We demonstrate the coherent transfer of an ultrastable optical frequency reference over a 490 km noisy field fiber link.The fiber-induced phase noise power spectrum density per-unit-length at 1 Hz offset frequency can reach up to 510 rad2·Hz-1·km-1,which is much higher than the fiber noise observed in previous reports.This extreme level of phase noise is mainly due to the fiber link laying underground along the highway.Appropriate phase-locked loop parameters are chosen to complete the active compensation of fiber noise by measuring the intensity fluctuation of additional phase noise and designing a homemade digital frequency division phase discriminator with a large phase detection range of 2127rrad.Finally,a noise suppression intensity of approximately 40 dB at 1Hz is obtained,with fractional frequency instability of 1.1×10-14 at 1s averaging time,and 3.7×10-19 at 10000 s.The transfer system will be used for remote atomic clock comparisons and optical frequency distribution over a long-distance communication network established in China.
文献关键词：
中图分类号：
作者姓名：
Xiang Zhang;Xue Deng;Qi Zang;Dongdong Jiao;Jing Gao;Dan Wang;Qian Zhou;Jie Liu;Guanjun Xu;Ruifang Dong;Tao Liu;Shougang Zhang
作者机构：
National Time Service Center,Chinese Academy of Sciences,Xi'an 710600,China;University of Chinese Academy of Sciences,Beijing 100039,China;Key Laboratory of Time and Frequency Standards,Chinese Academy of Sciences,Xi'an 710600,China
文献出处：
引用格式：
[1]Xiang Zhang;Xue Deng;Qi Zang;Dongdong Jiao;Jing Gao;Dan Wang;Qian Zhou;Jie Liu;Guanjun Xu;Ruifang Dong;Tao Liu;Shougang Zhang-.Coherent Optical Frequency Transfer via a 490 km Noisy Fiber Link)[J].中国物理快报（英文版）,2022(04):7-11
A类：
rad2,2127rrad
B类：
Coherent,Optical,Frequency,Transfer,via,Noisy,Fiber,Link,We,demonstrate,coherent,transfer,ultrastable,optical,frequency,reference,over,noisy,field,fiber,link,induced,phase,noise,power,spectrum,density,per,unit,length,offset,can,reach,which,much,higher,than,observed,previous,reports,This,extreme,level,mainly,due,laying,underground,along,highway,Appropriate,locked,loop,parameters,are,chosen,complete,active,compensation,by,measuring,intensity,fluctuation,additional,designing,homemade,digital,division,discriminator,large,detection,range,Finally,suppression,approximately,dB,1Hz,obtained,fractional,instability,1s,averaging,system,will,used,remote,atomic,clock,comparisons,distribution,distance,communication,network,established,China
AB值：
0.669054
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
