An Optically Pumped Far-Infrared Folded Mirror-Less Cavity

被引：0
|
作者：
Liu, Chuang [1 ]
Wang, Dashuai [1 ]
Zhang, Peng [1 ]
Qu, Yanchen [2 ]
机构：
[1] Changchun Univ Sci & Technol, Natl & Local Joint Engn Res Ctr Space Optoelectro, Changchun 130022, Jilin, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150080, Heilongjiang, Peoples R China
来源：
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2017年 / 38卷 / 12期
关键词：
Far-infrared gas laser; Mirror-less cavity; Double-pass amplification; TEA CO2-LASER; LASERS; EFFICIENT; INTENSE;
D O I：
10.1007/s10762-017-0427-5
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A compact and efficient mirror-less cavity is presented for an optically pumped 192-mu m far-infrared laser. With a gold-coated mirror and 30A degrees-inclined anti-reflection coated Ge plate serving as highly reflective mirrors, a folded mirror-less CH3F cavity is achieved. Maximum energy of 0.72 mJ is obtained with the pump energy of 600 mJ, which gives an energy increment of 75% in comparison with the previous 1.85-m mirror-less system. The beam divergence angle of the FIR radiation from this folded mirror-less cavity is measured to be 14.2 mrad.
引用
收藏
页码：1433 / 1438
页数：6
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