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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 3089–3092

Low-loss terahertz waveguide Bragg grating using a two-wire waveguide and a paper grating

Guofeng Yan, Andrey Markov, Yasser Chinifooroshan, Saurabh M. Tripathi, Wojtek J. Bock, and Maksim Skorobogatiy  »View Author Affiliations


Optics Letters, Vol. 38, Issue 16, pp. 3089-3092 (2013)
http://dx.doi.org/10.1364/OL.38.003089


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Abstract

We propose a low-loss terahertz waveguide Bragg grating (TWBG) fabricated using a plasmonic two-wire waveguide and a micromachined paper grating for potential applications in terahertz (THz) communications. Two TWBGs were fabricated with different periods and lengths. Transmission spectra of these TWBGs show 16 dB loss and 14 dB loss in the middle of their respective stop bands at 0.637 and 0.369 THz, with Q factors of 142 and 105, respectively. Insertion loss of 1–4 dB in the whole 0.1–0.7 THz region was also measured. Finally, TWBG modal dispersion relations, modal loss, and field distributions were studied numerically, and low-loss, high-coupling-efficiency operation of TWBGs was confirmed.

© 2013 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 21, 2013
Manuscript Accepted: July 15, 2013
Published: August 12, 2013

Citation
Guofeng Yan, Andrey Markov, Yasser Chinifooroshan, Saurabh M. Tripathi, Wojtek J. Bock, and Maksim Skorobogatiy, "Low-loss terahertz waveguide Bragg grating using a two-wire waveguide and a paper grating," Opt. Lett. 38, 3089-3092 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-16-3089


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