Widely tunable telecom MEMS-VCSEL for terahertz photomixing

Autor:	Julijan Cesar, Franko Küppers, Christian Gierl, Sascha Preu, Ali Emsia, Mohammad Tanvir Haidar, Sujoy Paul
Rok vydání:	2015
Předmět:	Materials science Terahertz radiation business.industry Schottky diode Laser Atomic and Molecular Physics and Optics law.invention Vertical-cavity surface-emitting laser Semiconductor laser theory Photomixing Direct-conversion receiver Optics law Telecommunications business Diode
Zdroj:	Optics letters. 40(19)
ISSN:	1539-4794
Popis:	We report frequency-tunable terahertz (THz) generation with a photomixer driven by an ultra-broadband tunable micro-electro-mechanical system vertical-cavity surface-emitting laser (MEMS-VCSEL) and a fixed-wavelength VCSEL, as well as a tunable MEMS-VCSEL mixed with a distributed feedback (DFB) diode. A total frequency span of 3.4 THz is covered in direct detection mode and 3.23 THz in the homodyne mode. The tuning range is solely limited by the dynamic range of the photomixers and the Schottky diode/photoconductor used in the experiment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72b867103f983110a8ffee1eb541fa9b https://pubmed.ncbi.nlm.nih.gov/26421548 Zobrazit plný text záznamu