Octave mid-infrared optical frequency comb from Er:fiber-laser-pumped aperiodically poled Mg:LiNbO3

被引：17

作者：

Zhou, Lian ^{[1
]}

Liu, Yang ^{[1
]}

Lou, Haipeng ^{[1
]}

Di, Yuanfeng ^{[1
]}

Xie, Gehui ^{[1
]}

Zhu, Zhiwei ^{[1
]}

Deng, Zejiang ^{[1
]}

Luo, Daping ^{[1
]}

Gu, Chenglin ^{[1
]}

Chen, Huaixi ^{[2
]}

Li, Wenxue ^{[1
,3
]}

机构：

[1] East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China

[3] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

OPTICS LETTERS | 2020年 / 45卷 / 23期

基金：

中国国家自然科学基金;

关键词：

28;

D O I：

10.1364/OL.410958

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, we report an octave-spanning mid-infrared (MIR) comb generation with a difference frequency generation (DFG) approach optimized for aperiodically poled Mg:LiNbO3 and nonlinear spectral broadening. An Er:fiber comb is delivered to two branches and amplified in an Yb:fiber and an Er:fiber amplifier, respectively. We demonstrate that the two-branch DFG can yield the spectrum tuned over an octave in a fan-out periodically poled lithium niobate. Thus, we obtain an optimized poling period profile and design the aperiodically poled Mg:LiNbO3. The results demonstrate that broadband combs can be generated in the MIR atmospheric window. (C) 2020 Optical Society of America

引用

页码：6458 / 6461

页数：4

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