Subwavelength dielectric-fiber-based THz coupler
Journal
Journal of Lightwave Technology
Journal Volume
27
Journal Issue
11
Pages
1489-1495
Date Issued
2009
Author(s)
Chen, H.-W.
Chiu, C.-M.
Lai, C.-H.
Kuo, J.-L.
Chiang, P.-J.
Hwang, Y.-J.
Chang, H.-C.
Abstract
We demonstrate a terahertz (THz) directional coupler for future THz applications including THz power dividers, THz communications, and THz fiber-endoscopes. By using subwavelength polyethylene fibers, we successfully established a single-mode fiber-based THz directional coupler. Unlike traditional directional couplers, the demonstrated subwavelength directional fiber coupler shows less dependency on the overlapped length of two fibers and the delivered THz frequency in our interested minimal-attenuation wavelength regime. By tuning the geometry, we also show the feasibility to control the coupling ratio.
SDGs
Type
journal article