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Optics Letters

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  • Vol. 36, Iss. 18 — Sep. 15, 2011
  • pp: 3590–3592

Terahertz antiresonant-reflecting-hollow-waveguide-based directional coupler operating at antiresonant frequencies

Chih-Hsien Lai, Chi-Kuang Sun, and Hung-chun Chang  »View Author Affiliations


Optics Letters, Vol. 36, Issue 18, pp. 3590-3592 (2011)
http://dx.doi.org/10.1364/OL.36.003590


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Abstract

We report a particular coupling phenomenon occurring in the directional coupler composed of two touching terahertz antiresonant reflecting hollow waveguides. Unlike conventional directional couplers where one even system mode and one odd system mode are excited, numerical results indicate that three (one even and two odd) system modes participate in the power transfer process at the antiresonant frequencies. As a result, the coupling length can be significantly reduced, and it is shown here to be less than 300 wavelengths.

© 2011 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.2790) Integrated optics : Guided waves
(260.3090) Physical optics : Infrared, far

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 23, 2011
Manuscript Accepted: July 27, 2011
Published: September 12, 2011

Citation
Chih-Hsien Lai, Chi-Kuang Sun, and Hung-chun Chang, "Terahertz antiresonant-reflecting-hollow-waveguide-based directional coupler operating at antiresonant frequencies," Opt. Lett. 36, 3590-3592 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-18-3590

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