DocumentCode :
3691252
Title :
Design study of low loss single-mode hollow core photonic crystal terahertz waveguide with support bridges
Author :
Binbin Hong;Nutapong Somjit;John Cunningham;Ian Robertson
Author_Institution :
School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT UK
fYear :
2015
Firstpage :
1
Lastpage :
2
Abstract :
We present a design study of an all-polymer low loss single-mode hollow-core photonic crystal (HCPC) terahertz (THz) waveguide with dielectric bridges used as mechanical supports. By exploiting a modal-filtering effect and Brewster phenomenon, we maximize the loss discrimination between the fundamental and other higher order modes resulting in an effectively single-mode operation, though the HCPC THz waveguide is ostensibly multi-mode. Owing to the use of support bridges, which increase the propagation loss, the non-ideal HCPC THz waveguide has higher loss than an ideal one. Nonetheless, the propagation loss of the fundamental HE11 mode can still be minimized, to lower than 5 dB/m over the frequency range from 0.75 to 1.1 THz. In addition, the group velocity dispersion of the HE11 mode is less than -0.5 ps/THz/cm.
Keywords :
"Propagation losses","Photonic band gap","Bridges","Refractive index","Optical losses","Optical fiber dispersion"
Publisher :
ieee
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
ISSN :
2162-2027
Electronic_ISBN :
2162-2035
Type :
conf
DOI :
10.1109/IRMMW-THz.2015.7327404
Filename :
7327404
Link To Document :
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