High power-efficiency terahertz quantum cascade laser

doi:10.1088/1674-1056/25/8/084206

中国物理B ›› 2016, Vol. 25 ›› Issue (8): 84206-084206.doi: 10.1088/1674-1056/25/8/084206

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

High power-efficiency terahertz quantum cascade laser

Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, and Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China

收稿日期:2016-02-24 修回日期:2016-04-12 出版日期:2016-08-05 发布日期:2016-08-05
通讯作者: Jun-Qi Liu, Feng-Qi Liu E-mail:jqliu@semi.ac.cn;fqliu@red.semi.ac.cn
基金资助:
Project supported by the National Basic Research Program of China (Grant Nos. 2014CB339803 and 2013CB632801), the Special-funded Program on National Key Scientific Instruments and Equipment Development, China (Grant No. 2011YQ13001802-04), and the National Natural Science Foundation of China (Grant No. 61376051).

High power-efficiency terahertz quantum cascade laser

Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, and Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China

Received:2016-02-24 Revised:2016-04-12 Online:2016-08-05 Published:2016-08-05
Contact: Jun-Qi Liu, Feng-Qi Liu E-mail:jqliu@semi.ac.cn;fqliu@red.semi.ac.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant Nos. 2014CB339803 and 2013CB632801), the Special-funded Program on National Key Scientific Instruments and Equipment Development, China (Grant No. 2011YQ13001802-04), and the National Natural Science Foundation of China (Grant No. 61376051).

摘要/Abstract

摘要： We demonstrate continuous-wave (CW) high power-efficiency terahertz quantum cascade laser based on semi-insulating surface-plasmon waveguide with epitaxial-side down (Epi-down) mounting process. The performance of the device is analyzed in detail. The laser emits at a frequency of ~3.27 THz and has a maximum CW operating temperature of ~70 K. The peak output powers are 177 mW in pulsed mode and 149 mW in CW mode at 10 K for 130-μm-wide Epi-down mounted lasers. The record wall-plug efficiencies in direct measurement are 2.26% and 2.05% in pulsed and CW mode, respectively.

关键词: terahertz lasers, quantum cascade lasers, epitaxial-side down mounting

Abstract: We demonstrate continuous-wave (CW) high power-efficiency terahertz quantum cascade laser based on semi-insulating surface-plasmon waveguide with epitaxial-side down (Epi-down) mounting process. The performance of the device is analyzed in detail. The laser emits at a frequency of ~3.27 THz and has a maximum CW operating temperature of ~70 K. The peak output powers are 177 mW in pulsed mode and 149 mW in CW mode at 10 K for 130-μm-wide Epi-down mounted lasers. The record wall-plug efficiencies in direct measurement are 2.26% and 2.05% in pulsed and CW mode, respectively.

Key words: terahertz lasers, quantum cascade lasers, epitaxial-side down mounting

中图分类号: (Semiconductor lasers; laser diodes)

42.55.Px

73.63.Hs (Quantum wells) 85.35.Be (Quantum well devices (quantum dots, quantum wires, etc.))

李媛媛, 刘俊岐, 刘峰奇, 张锦川, 翟慎强, 卓宁, 王利军, 刘舒曼, 王占国. High power-efficiency terahertz quantum cascade laser[J]. 中国物理B, 2016, 25(8): 84206-084206.

Yuan-Yuan Li(李媛媛), Jun-Qi Liu(刘俊岐), Feng-Qi Liu(刘峰奇), Jin-Chuan Zhang(张锦川), Shen-Qiang Zhai(翟慎强), Ning Zhuo(卓宁), Li-Jun Wang(王利军), Shu-Man Liu(刘舒曼), Zhan-Guo Wang(王占国). High power-efficiency terahertz quantum cascade laser[J]. Chin. Phys. B, 2016, 25(8): 84206-084206.

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High power-efficiency terahertz quantum cascade laser

High power-efficiency terahertz quantum cascade laser

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