Low-loss hollow metallic waveguides efficiently coupled to Terahertz micro-ring quantum cascade lasers

Miriam Serena Vitiello; Miriam Serena Vitiello; Ji-Hua Xu; Mirgender Kumar; Fabio Beltram; Alessandro Tredicucci; Oleg Mitrofanov; Harvey E. Beere; David A. Ritchie

doi:10.1364/CLEO_SI.2011.CThN5

CLEO:2011 - Laser Applications to Photonic Applications
OSA Technical Digest (CD) (Optica Publishing Group, 2011),
paper CThN5
•https://doi.org/10.1364/CLEO_SI.2011.CThN5

Low-loss hollow metallic waveguides efficiently coupled to Terahertz micro-ring quantum cascade lasers

Miriam Serena Vitiello, Ji-Hua Xu, Mirgender Kumar, Fabio Beltram, Alessandro Tredicucci, Oleg Mitrofanov, Harvey E. Beere, and David A. Ritchie

CLEO: Science and Innovations 2011

Baltimore, Maryland United States
1–6 May 2011
ISBN: 978-1-55752-910-7

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THz Waveguides (CThN)

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M. S. Vitiello, J. Xu, M. Kumar, F. Beltram, A. Tredicucci, O. Mitrofanov, H. E. Beere, and D. A. Ritchie, "Low-loss hollow metallic waveguides efficiently coupled to Terahertz micro-ring quantum cascade lasers," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optica Publishing Group, 2011), paper CThN5.

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Abstract

We demonstrate that the azimuthally polarized beam of a micro-ring THz quantum-cascade laser can be coupled to hollow metallic waveguides with efficiencies ≥96% and perfectly matched with the TE₀₁ waveguide mode, giving attenuation losses <3dB/m.

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