Title :
Design and efficient coupling of TE01 mode in small-core THz Bragg fiber
Author :
H. Y. Yao;J. Y. Jiang;Y. S. Cheng;Z. Y. Chen;T. H. Chang;T. H. Her
Author_Institution :
Department of Physics, National Tsing Hua University, HsinChu, 30013 Taiwan
Abstract :
We report a design of small-core, multiple-layer Bragg waveguide for guiding the terahertz (THz) signal using TE01 mode, which is composed of alternating high-index dielectric (HDPE) and low-index dielectric (air). The propagation loss is less than 0.1 dB per centimeter ranging from 0.95 THz to 1.20 THz, which is better than that of the traditional metallic tube. Furthermore, a novel scheme is proposed to excite and extract the TE01 mode in the Bragg fiber by employing Y-type mode converters. Based on this scheme, for the first time, one can generate the Bragg TE01 mode and further apply such wave-guiding system in THz communication or beam-wave interaction for THz generation.
Keywords :
"Optical fiber communication","Optical fiber dispersion","Couplings","Propagation losses","Optical fiber polarization","Optical fiber theory","Yttrium"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327631
