A 515-nm laser-pumped idler-resonant femtosecond BiB3O6 optical parametric oscillator |
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| Authors: | Jinfang Yang Zhaohua Wang Jiajun Song Renchong Lv Xianzhi Wang Jiangfeng Zhu Zhiyi Wei |
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| Affiliation: | 1.School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China;2.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;3.University of Chinese Academy of Sciences(CAS), Beijing 100049, China;4.Songshan Lake Materials Laboratory, Dongguan 523808, China;5.CAS Center for Excellence in Ultra-intense Laser Science, Shanghai 201800, China |
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| Abstract: | We report on an idler-resonant femtosecond optical parametrical oscillator (OPO) based on BiB3O6 (BiBO) crystal, synchronously pumped by a frequency-doubled, mode-locked Yb:KGW laser at 515 nm. The idler wavelengths of OPO can be tuned from 1100 nm to 1540 nm. At a repetition rate of 75.5 MHz, the OPO generates as much as 400 mW of idler power with 3.1 W of pump power, the corresponding pulse duration is 80 fs, which is 1.04 times of Fourier transform-limited (FTL) pulse duration at 1305 nm. In addition, the OPO exhibits excellent beam quality with M2 < 1.8 at 1150 nm. To the best of our knowledge, this is the first idler-resonant femtosecond OPO pumped by 515 nm. |
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| Keywords: | nonlinear frequency conversion 515-nm laser pumped femtosecond optical parametric oscillator BiB3O6 nonlinear crystal |
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