Self-Starting Harmonic Emission and Active Harmonic Modelocking in THz QCLs

Valentino Pistore, F. Wang, M. Riesch, H. Nong, P. B. Vigneron, R. Colombelli, O. Parillaud, C. Jirauschek, J. Mangeney, J. Tignon, S. Dhillon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In laser technology, harmonic modelocking is usually employed to attain higher repetition rates that is associated with lower noise systems. Despite the favourable dynamics of THz QCLs, harmonic active modelocking has not been experimentally demonstrated yet. In this work, we present the results of active modelocking experiments performed at the fundamental and second harmonic on a 6mm double metal THz QCL. We will also show that in certain cases, QCLs can spontaneously attain second harmonic emission without an active modulation, i.e. self-starting harmonic behaviour.

Original languageEnglish (US)
Title of host publicationIRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves
PublisherIEEE Computer Society
ISBN (Electronic)9781538682852
DOIs
StatePublished - Sep 2019
Externally publishedYes
Event44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France
Duration: Sep 1 2019Sep 6 2019

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2019-September
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019
Country/TerritoryFrance
CityParis
Period9/1/199/6/19

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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