| Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser |
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| 作者姓名： | 宋贾俊 孟祥昊 王兆华 王羡之 田文龙 朱江峰 方少波 滕浩 魏志义 |
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| 作者单位： | Beijing National Laboratory for Condensed Matter Physics;University of Chinese Academy of Sciences;Songshan Lake Materials Laboratory;School of Physics and Optoelectronic Engineering |
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| 基金项目： | supported by the National Key R&D Program of China(No.2017YFC0110301);the National Natural Science Foundation of China(Nos.91950113,91850209,11774410,and 61575219);the Strategic Priority Research Program of CAS(No.XDB23030203 XDB16030200);the Key Research Program of Frontier Sciences of CAS(No.KJZD-EW-L11-03);the Youth Innovation Promotion Association of the CAS(No.2018007)。 |
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| 摘 要： | We demonstrate a harmonically pumped femtosecond optical parametric oscillator(OPO)laser using a frequency-doubled mode-locked Yb:KGW laser at a repetition rate of 75.5 MHz as the pump laser.Based on a bismuth borate nonlinear crystal,repetition rates up to 1.13 GHz are realized,which is 15 times that of the pump laser.The signal wavelength is tunable from 700 nm to 887 nm.The maximum power of the signal is 207 m W at the central wavelength of 750 nm and the shortest pulse duration is 117 fs at 780 nm.The beam quality(M^2 factor)in the horizontal and vertical directions of the output beam are 1.077 and 1.141,respectively.
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| 关 键 词： | GHZ FEMTOSECOND LASER optical parametric OSCILLATOR tunable WAVELENGTH |
Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser |
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| Jiajun Song,Xianghao Meng,Zhaohua Wang,Xianzhi Wang,Wenlong Tian,Jiangfeng Zhu,Shaobo Fang,Hao Teng,Zhiyi Wei.Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser[J].中国光学快报(英文版),2020(3):57-61. |
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| Authors: | Jiajun Song Xianghao Meng Zhaohua Wang Xianzhi Wang Wenlong Tian Jiangfeng Zhu Shaobo Fang Hao Teng Zhiyi Wei |
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| Affiliation: | (Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Songshan Lake Materials Laboratory,Dongguan 523808,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China) |
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| Abstract: | We demonstrate a harmonically pumped femtosecond optical parametric oscillator(OPO) laser using a frequency-doubled mode-locked Yb:KGW laser at a repetition rate of 75.5 MHz as the pump laser. Based on a bismuth borate nonlinear crystal, repetition rates up to 1.13 GHz are realized, which is 15 times that of the pump laser. The signal wavelength is tunable from 700 nm to 887 nm. The maximum power of the signal is 207 m W at the central wavelength of 750 nm and the shortest pulse duration is 117 fs at 780 nm. The beam quality(M~2 factor) in the horizontal and vertical directions of the output beam are 1.077 and 1.141, respectively. |
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