Terahertz imaging using an optical frequency comb source

被引：3

作者：

Shao, Dixiang ^{[1
,2
,3
]}

Yao, Chen ^{[3
]}

Zhou, Tao ^{[3
]}

Zhang, Rong ^{[3
]}

Fu, Zhanglong ^{[3
]}

Zhuang, Songlin ^{[1
,2
]}

Cao, Juncheng ^{[3
]}

机构：

[1] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China

[2] Univ Shanghai Sci & Technol, Engn Res Ctr Opt Instrument & Syst, Minist Educ, Shanghai 200093, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Key Lab Terahertz Solid State Technol, Shanghai 200050, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2019年 / 17卷 / 04期

基金：

中国国家自然科学基金;

关键词：

GENERATION;

D O I：

10.3788/COL201917.041101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical frequency combs, which are generated by the cascade of a phase modulator and a Mach-Zehnder intensity modulator, are used as a polychromatic signal source in the terahertz imaging system to improve imaging quality. The interference effect caused by the monochromatic wave has been greatly suppressed. The required optical power in the presented system is as low as similar to 30% of that in the system using the Er-doped fiber amplifier as a source, which can reduce cost and protect photodiodes from damage. This work provides an effective, low power consumption, low cost, and easy way to realize terahertz imaging with high quality and can be used in future security inspections.

引用

页数：3

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