Power dependent measurements of the emission bandwidth of a vertical-external-cavity surface-emitting laser driven terahertz source

Matthias Wichmann, Christoph Moller, Markus Stein, Arash Rahimi-Iman, Stephan W. Koch, Wolfgang Stolz, Martin Koch

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

Abstract

We investigate the pump-power dependent emission bandwidth of a CW THz emitter which is based on intra-cavity difference frequency generation in a two-color vertical-external-cavity surface-emitting laser. Two Michelson interferometers are employed to investigate the two color laser output and the originating CW THz signal, respectively. This allows a study of the optical modes which contribute to the THz signal. We find that the THz emission bandwidth is strongly depending on the pump power and shows a clear correlation with the number of involved optical modes.

Original languageEnglish (US)
Title of host publication2014 39th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2014
PublisherIEEE Computer Society
ISBN (Electronic)9781479938773
DOIs
StatePublished - Nov 13 2014
Event39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014 - Tucson, United States
Duration: Sep 14 2014Sep 19 2014

Publication series

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

Other

Other39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014
CountryUnited States
CityTucson
Period9/14/149/19/14

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Wichmann, M., Moller, C., Stein, M., Rahimi-Iman, A., Koch, S. W., Stolz, W., & Koch, M. (2014). Power dependent measurements of the emission bandwidth of a vertical-external-cavity surface-emitting laser driven terahertz source. In 2014 39th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2014 [6956476] (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz). IEEE Computer Society. https://doi.org/10.1109/IRMMW-THz.2014.6956476