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基于光纤光梳的传递振荡器技术研究

Research on Transfer Oscillator Technology Based on Fiber Optical Frequency Comb

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摘要

研究了基于光纤飞秒光学频率梳的传递振荡器技术,介绍了其基本原理,设计并搭建传递振荡器系统,实现了主激光器与从激光器光学频率的相干传递,锁定后系统环内拍频信号的s级频率稳定度达5×10 -19量级。搭建了两套传递振荡器系统,将主激光器的光学频率同时传递至两个独立的从激光器,分析了锁定后两个从激光器拍频信号引入系统中的相位噪声。通过提高拍频信号信噪比、优化信号处理过程、减小外部环境干扰等方法,最终两个从激光器得到的环外拍频信号线宽小于30 mHz,光学频率传递的s级频率稳定度达1.4×10 -17量级。

Abstract

Transfer oscillator technology based on femtosecond optical frequency comb is studied, its basic principles are introduced, and the transfer oscillator system is designed and built. The coherent transfer of optical frequency between the master laser and the slave laser is realized. The second-level frequency stability of beat note signal in the system loop reaches the order of 5×10 -19. For further evaluation, two sets of transfer oscillator systems are setup to transmit the optical frequency of the master laser to two independent slave lasers at the same time, and the phase noise introduced into the system by the beat note signal of the two slave lasers after locking is analyzed. By improving the signal-to-noise ratio of the beat note signal, optimizing signal processing, and reducing external environmental interference, the two outer beat note signals obtained from the two slave lasers have a line width of less than 30 mHz and the s-level frequency stability of optical frequency transmission reaches the order of 1.4×10 -17.

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中图分类号:TN249

DOI:10.3788/LOP57.070602

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金、国家重点研发计划、天津市自然科学基金、广东省重大科技专项;

收稿日期:2019-09-09

修改稿日期:2019-11-19

网络出版日期:2020-04-01

作者单位    点击查看

杨明哲:天津大学精密仪器与光电子工程学院光电信息技术教育部重点实验室, 天津 300072
孟飞:中国计量科学研究院时间频率计量研究所光学频率标准实验室, 北京 100029
林弋戈:中国计量科学研究院时间频率计量研究所光学频率标准实验室, 北京 100029
宋有建:天津大学精密仪器与光电子工程学院光电信息技术教育部重点实验室, 天津 300072
方占军:中国计量科学研究院时间频率计量研究所光学频率标准实验室, 北京 100029
胡明列:天津大学精密仪器与光电子工程学院光电信息技术教育部重点实验室, 天津 300072

联系人作者:杨明哲(651029887@qq.com)

备注:国家自然科学基金、国家重点研发计划、天津市自然科学基金、广东省重大科技专项;

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引用该论文

Yang Mingzhe,Meng Fei,Lin Yiyi,Song Youjian,Fang Zhanjun,Hu Minglie. Research on Transfer Oscillator Technology Based on Fiber Optical Frequency Comb[J]. Laser & Optoelectronics Progress, 2020, 57(7): 070602

杨明哲,孟飞,林弋戈,宋有建,方占军,胡明列. 基于光纤光梳的传递振荡器技术研究[J]. 激光与光电子学进展, 2020, 57(7): 070602

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