Terahertz imaging using an optical frequency comb source

被引：0
|
作者：
邵棣祥 [1 ,2 ]
姚辰 [2 ]
周涛 [2 ]
张戎 [2 ]
符张龙 [2 ]
庄松林 [1 ]
曹俊诚 [2 ]
机构：
[1] Shanghai Key Laboratory of Modern Optical System and Engineering Research Center of Optical Instrument and System, Ministry of Education, University of Shanghai for Science and Technology
[2] Key Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences
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：
THz; Terahertz imaging using an optical frequency comb source;
D O I：
暂无
中图分类号：
O441 [电磁学]; TN761 [调制技术与调制器];
学科分类号：
0809 ;
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～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
收藏
页码：48 / 50
页数：3
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