Multi-Watt high-power THz frequency quantum cascade lasers

被引：95
作者：
Li, L. H. [1 ]
Chen, L. [1 ]
Freeman, J. R. [1 ]
Salih, M. [1 ]
Dean, P. [1 ]
Davies, A. G. [1 ]
Linfield, E. H. [1 ]
机构：
[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England
来源：
ELECTRONICS LETTERS | 2017年 / 53卷 / 12期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1049/el.2017.0662
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：
Multi-Watt high-power terahertz (THz) frequency quantum cascade lasers are demonstrated, based on a single, epitaxially grown, 24-mu m-thick active region embedded into a surface-plasmon waveguide. The devices emit in pulsed mode at a frequency of similar to 4.4 THz and have a maximum operating temperature of 132 K. The maximum measurable emitted powers from a single facet are similar to 2.4 W at 10 K and similar to 1.8 W at 77 K, with no correction being made for the optical collection efficiency of the apparatus, or absorption by the cryostat polyethylene window.
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收藏
页码：799 / +
页数：2
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