High-Speed Modulation of a Terahertz Quantum Cascade Laser Using Coherent Acoustic Phonon Pulses

被引：1

作者：

Dunn, Aniela ^{[1
]}

Poyser, Caroline ^{[2
]}

Dean, Paul ^{[1
]}

Demic, Aleksandar ^{[1
]}

Valavanis, Alexander ^{[1
]}

Indjin, Dragan ^{[1
]}

Salih, Mohammed ^{[1
]}

Kundu, Iman ^{[1
]}

Li, Lianhe ^{[1
]}

Akimov, Andrey ^{[2
]}

Davies, Giles ^{[1
]}

Linfield, Edmund ^{[1
]}

Cunningham, John ^{[1
]}

Kent, Anthony ^{[2
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

来源：

2019 44TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2019年

基金：

英国生物技术与生命科学研究理事会; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1109/irmmw-thz.2019.8874441

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：

We demonstrate a new method for high-speed modulation of terahertz emission and electronic transport of a Ga(Al)As quantum cascade laser using coherent acoustic phonon pulses. The modulation, which is on the order of 6%, can be partially explained by a perturbation-theory analysis. The < 1 ns rise time of the modulation is dominated by parasitic device impedance in our experiment, however, the fast transit of phonons through the QCL heterostructure imply modulation rates > 100 GHz are possible.

引用

页数：2

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