| 面向Li原子D1线频率测量应用的掺铒飞秒光纤光梳系统 |
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| 引用本文： | 饶冰洁,张颜艳,闫露露,武跃龙,张攀,樊松涛,郭文阁,张晓斐,张首刚,姜海峰.面向Li原子D1线频率测量应用的掺铒飞秒光纤光梳系统[J].光子学报,2019,48(1):115-120. |
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| 作者姓名： | 饶冰洁 张颜艳 闫露露 武跃龙 张攀 樊松涛 郭文阁 张晓斐 张首刚 姜海峰 |
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| 作者单位： | 中国科学院国家授时中心时间频率基准重点实验室;中国科学院国家授时中心时间频率基准重点实验室;中国科学院大学天文与空间科学学院;华东师范大学精密光谱科学与技术国家重点实验室 |
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| 摘 要： | 报道了自主研制的面向Li原子D1线频率测量应用的掺铒飞秒光纤光学频率梳,包括飞秒激光源,频率探测及控制单元,光谱展宽及拍频单元.光纤光梳系统中飞秒激光光源是一套基于非线性偏振旋转锁模机制的掺铒飞秒光纤激光器,重复频率为196.5MHz,中心波长为1 572nm.利用f-2f法探测载波包络相移频率,获得信噪比约为40dB的信号(分辨率带宽300kHz).改变飞秒激光光源泵浦控制载波包络相移频率、频率稳定度是3.74×10-18/τ1/2;通过电光晶体和压电陶瓷改变飞秒激光光源腔长来控制重复频率frep、频率稳定度是1.75×10-13/τ1/2.利用高非线性光纤和倍频晶体将光纤光梳直接输出光谱由1 520～1 607nm扩展到671nm,获得了单模功率为208nW的光信号.与671nm单频激光拍频产生约为60dB(分辨率带宽1Hz)信号,满足Li原子D1线频率测量实验的需求.
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| 关 键 词： | 光学频率梳 锁模激光器 掺铒光纤 光谱扩展 频率测量 |
Er:fiber Femtosecond Optical Frequency Comb Aimed at Measurement of Frequency of D1 Line in Li Atoms |
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| RAO Bing-jie,ZHANG Yan-yan,YAN Lu-lu,WU Yue-long,ZHANG Pan,FAN Song-tao,GUO Wen-ge,ZHANG Xiao-fei,ZHANG Shou-gang,JIANG Hai-feng.Er:fiber Femtosecond Optical Frequency Comb Aimed at Measurement of Frequency of D1 Line in Li Atoms[J].Acta Photonica Sinica,2019,48(1):115-120. |
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| Authors: | RAO Bing-jie ZHANG Yan-yan YAN Lu-lu WU Yue-long ZHANG Pan FAN Song-tao GUO Wen-ge ZHANG Xiao-fei ZHANG Shou-gang JIANG Hai-feng |
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| Institution: | (Key Laboratory of Time and Frequency Primary Standards,National Time Service Center, Chinese Academy of Sciences,Xi’an 710600,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China) |
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| Abstract: | RAO Bing-jie;ZHANG Yan-yan;YAN Lu-lu;WU Yue-long;ZHANG Pan;FAN Song-tao;GUO Wen-ge;ZHANG Xiao-fei;ZHANG Shou-gang;JIANG Hai-feng(Key Laboratory of Time and Frequency Primary Standards,National Time Service Center, Chinese Academy of Sciences,Xi’an 710600,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China) |
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| Keywords: | Optical frequency comb Mode-locked laser Erbium-doped fiber Spectral broaden Frenquency measurement |
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