| 相位锁定至超窄线宽激光的高相干性双光梳研究 |
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| 引用本文： | 崔佳华,林百科,孟飞,曹士英,杨明哲,林弋戈,宋有建,胡明列,方占军.相位锁定至超窄线宽激光的高相干性双光梳研究[J].红外与毫米波学报,2020,39(1):25-31. |
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| 作者姓名： | 崔佳华 林百科 孟飞 曹士英 杨明哲 林弋戈 宋有建 胡明列 方占军 |
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| 作者单位： | 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;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;清华大学精密仪器系,北京 100084;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;北京大学电子学系先进光通信系统与网络国家重点实验室,北京 100871;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 |
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| 基金项目： | 国家重点研发计划 2016YFF0200201 2017YFA0304404;国家自然科学基金 91736310;天津市自然科学基金 18JCYBJC16900国家重点研发计划（2016YFF0200201，2017YFA0304404）；国家自然科学基金（91736310）；天津市自然科学基金（18JCYBJC16900） |
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| 摘 要： | 研究并实现了一种相位锁定至超窄线宽激光的双光梳系统。实验通过将两台重复频率约为200MHz、重复频率差约为17 kHz的掺铒锁模激光器的对应梳齿,同时分别锁定到两台不同波长(1542 nm和1560 nm)的窄线宽连续激光器上,实现了相位相干且稳定度高的双光梳。锁定后单台光梳的梳齿线宽均低于5Hz(受限测试条件),两台光梳的相对线宽小于0.35Hz。该双光梳系统对于高精度光谱分析、时频传递,尤其是绝对距离测量等领域具有重要的应用价值。
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| 关 键 词： | 窄线宽光频梳 双光梳 相位锁定 相干性 |
| 收稿时间： | 2019/7/16 0:00:00 |
| 修稿时间： | 2019/12/18 0:00:00 |
High coherence dual-comb based on phase locking to ultra-narrow linewidth lasers |
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| CUI Jia-Hu,LIN Bai-Ke,MENG Fei,CAO Shi-Ying,YANG Ming-Zhe,LIN Yi-Ge,SONG You-Jian,HU Ming-Lie and FANG Zhan-Jun.High coherence dual-comb based on phase locking to ultra-narrow linewidth lasers[J].Journal of Infrared and Millimeter Waves,2020,39(1):25-31. |
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| Authors: | CUI Jia-Hu LIN Bai-Ke MENG Fei CAO Shi-Ying YANG Ming-Zhe LIN Yi-Ge SONG You-Jian HU Ming-Lie and FANG Zhan-Jun |
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| Affiliation: | Key Laboratory of Opto-electronic Information Technology of the Ministry of Education, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China,Laboratory of Optical Frequency Standard, Time and Frequency Metrology Division, National Institute of Metrology, Beijing 100029, China;Department of Precision Instrument, Tsinghua University, Beijing 100084, China,Laboratory of Optical Frequency Standard, Time and Frequency Metrology Division, National Institute of Metrology, Beijing 100029, China;State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing 100871, China,Laboratory of Optical Frequency Standard, Time and Frequency Metrology Division, National Institute of Metrology, Beijing 100029, China,Key Laboratory of Opto-electronic Information Technology of the Ministry of Education, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China,Laboratory of Optical Frequency Standard, Time and Frequency Metrology Division, National Institute of Metrology, Beijing 100029, China,Key Laboratory of Opto-electronic Information Technology of the Ministry of Education, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China,Key Laboratory of Opto-electronic Information Technology of the Ministry of Education, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China,Laboratory of Optical Frequency Standard, Time and Frequency Metrology Division, National Institute of Metrology, Beijing 100029, China |
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| Abstract: | A dual-comb system based on phase locking to ultra-narrow linewidth lasers is studied and implemented in this paper.Two Erbium-doped mode-locked lasers with repetition rates of about 200 MHz and repetition rate difference of about 17 kHz were simultaneously locked to two narrow-linewidth continuous wave lasers at 1542 nm and 1560 nm,respectively.Hence,dual-comb with high coherence and stability is achieved.After phase locking,the comb linewidth of a single comb is less than 5 Hz(limited by test condition),and the relative linewidth of two combs is less than 0.35 Hz.The dual comb system has important application value in high precision spectral analysis,time-frequency transmission,and especially absolute distance measurement. |
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| Keywords: | narrow linewidth optical frequency comb dual-comb phase locking coherency |
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