Terahertz quantum cascade laser coupled with high efficiency to the low loss optical modes of cylindrical hollow core waveguides

Miriam S. Vitiello, J. H. Xu, F. Beltram, A. Tredicucci, O. Mitrofanov, James Harrington, H. E. Beeree, D. A. Ritchie

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

Abstract

We demonstrate that azimuthally polarized micro-ring THz quantum-cascade lasers can be coupled to hollow metallic waveguides with efficiencies ±96% and perfectly matched with the TE01 waveguide mode, giving attenuation losses < 3dB/m. The use of Ag coated-flexible pipe waveguides allows propagation of either vertically polarized or azimuthally polarized QCL beams with propagation losses as low as 2.1-4.4 dB/m and bending losses lower than 1.2 dB.

Original languageEnglish (US)
Title of host publicationTerahertz Emitters, Receivers, and Applications II
DOIs
StatePublished - Oct 11 2011
EventTerahertz Emitters, Receivers, and Applications II - San Diego, CA, United States
Duration: Aug 21 2011Aug 21 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8119
ISSN (Print)0277-786X

Other

OtherTerahertz Emitters, Receivers, and Applications II
CountryUnited States
CitySan Diego, CA
Period8/21/118/21/11

All Science Journal Classification (ASJC) codes

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

Keywords

  • Quantum cascade laser
  • Terahertz
  • Waveguides

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