Generation of mid-infrared emission with a 3.1-4.5 μm instantaneous bandwidth from a chirped-pulse optical parametric oscillator

被引：12
作者：
Liu, Pei [1 ,2 ]
Zhang, Zhaowei [1 ,2 ,3 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Midinfrared Lasers Grp, Wuhan 430074, Hubei, Peoples R China
[2] Natl Engn Res Ctr Laser Proc, Wuhan 430074, Hubei, Peoples R China
[3] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
来源：
OPTICS LETTERS | 2019年 / 44卷 / 16期
关键词：
BROAD-BAND; FREQUENCY COMB; COHERENT-LIGHT; SPECTROSCOPY; LASER; IDENTIFICATION; DISPERSION;
D O I：
10.1364/OL.44.003988
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a broadband optical parametric oscillator (OPO) pumped by a Yb-doped fiber laser system. By utilizing a 300 mu m long magnesium-doped periodically poled LiNbO3 crystal as the parametric gain medium and configuring the OPO as a chirped-pulse oscillator, we obtained mid-infrared emission having an instantaneous bandwidth covering 3084-4466 nm. This result represents, to the best of our knowledge, the widest instantaneous bandwidth obtained from a Yb-fiber-laser-pumped singly resonant OPO, demonstrating the immense potential of chirped-pulse oscillation in scaling the instantaneous bandwidth of ultrafast OPOs. Moreover, we performed a numerical simulation of chirped-pulse OPOs (CPOPOs) and revealed that the spectral profile of the output from a CPOPO was relevant to both the parametric gain profile of the nonlinear crystal and the intra-cavity high-order dispersion. (C) 2019 Optical Society of America.
引用
收藏
页码：3988 / 3991
页数：4
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