Terahertz generation by difference frequency conversion of two single-frequency VECSELs in an external resonance cavity

Maik Scheller, Justin R. Paul, Alexandre Laurain, Abram Young, Stephan W. Koch, Jerome V. Moloney

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

8 Scopus citations

Abstract

We demonstrate a continuous wave, single frequency terahertz (THz) source based on parametric difference frequency generation within a nonlinear crystal located in an optical enhancement cavity. Two single-frequency VECSELs with emission wavelengths spaced by 6.8 nm are phase locked to the external cavity and are used as pump sources for the nonlinear down conversion. The emitting THz radiation is centered at 1.9 THz and has a linewidth of less than 100 kHz. The output power of the source exceeds 100 μW. We show that the THz source can be used as local oscillator to drive a receiver used in astronomy applications.

Original languageEnglish (US)
Title of host publicationVertical External Cavity Surface Emitting Lasers (VECSELs) IV
PublisherSPIE
ISBN (Print)9780819498793
DOIs
StatePublished - Jan 1 2014
EventVertical External Cavity Surface Emitting Lasers (VECSELs) IV - San Francisco, CA, United States
Duration: Feb 2 2014Feb 4 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8966
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherVertical External Cavity Surface Emitting Lasers (VECSELs) IV
CountryUnited States
CitySan Francisco, CA
Period2/2/142/4/14

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Keywords

  • Frequency conversion
  • High power
  • Nonlinear optics
  • Single-frequency
  • Terahertz
  • VECSEL

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Scheller, M., Paul, J. R., Laurain, A., Young, A., Koch, S. W., & Moloney, J. V. (2014). Terahertz generation by difference frequency conversion of two single-frequency VECSELs in an external resonance cavity. In Vertical External Cavity Surface Emitting Lasers (VECSELs) IV [89660E] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8966). SPIE. https://doi.org/10.1117/12.2040399