Coherent CW THz generation with a coupled-cavity mini-array VCSEL

IF 0.7 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electronics Letters Pub Date : 2025-01-17 DOI:10.1049/ell2.70146

Yinghui Hu, Carsten Brenner, Nikolay N. Ledentsov, Nikolay Ledentsov Jr., Vitaly A. Shchukin, Martin R. Hofmann, Markus Lindemann

引用次数: 0

Abstract

Coupled-cavity mini-array vertical-cavity surface-emitting lasers (VCSELs) are promising laser sources for high-speed data transmission due to their extended intensity modulation frequencies. Here, it is demonstrated for the first time how to use such a 2 × 1 mini-array VCSEL for the photonic generation of CW THz radiation. The emission frequencies of the cavities are tuned via current and provide the beat frequency for the photoconductive antennae. With coherent lock-in detection we measured frequencies up to 300 GHz, making the mini-array VCSEL an extremely simple and low-cost alternative laser source for frequency-modulated continuous-wave radar or spectroscopy systems.

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来源期刊

Electronics Letters 工程技术-工程：电子与电气

CiteScore

2.70

自引率

0.00%

发文量

268

审稿时长

3.6 months

期刊介绍： Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews. Scope As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below. Antennas and Propagation Biomedical and Bioinspired Technologies, Signal Processing and Applications Control Engineering Electromagnetism: Theory, Materials and Devices Electronic Circuits and Systems Image, Video and Vision Processing and Applications Information, Computing and Communications Instrumentation and Measurement Microwave Technology Optical Communications Photonics and Opto-Electronics Power Electronics, Energy and Sustainability Radar, Sonar and Navigation Semiconductor Technology Signal Processing MIMO