Terahertz pipe-waveguide-based directional couplers
Journal
Optics Express
Journal Volume
19
Journal Issue
27
Pages
26883-26890
Date Issued
2011
Author(s)
Lu, J.-T.
Lai, C.-H.
Tseng, T.-F.
Chen, H.
Tsai, Y.-F.
Hwang, Y.-J.
Chang, H.-C.
Sun, C.-K.
Abstract
We experimentally demonstrate a terahertz (THz) leaky mode directional coupler for future THz applications. The proposed directional coupler comprises two square pipe waveguides. The coupling efficiency is investigated for different frequencies, polarizations, and core sizes. Rectangular pipe-waveguide-based directional couplers and the issue of insertion loss are also discussed. It is found that the THz directional coupler works most efficiently in the minimal-attenuation wavelength regime.
SDGs
Type
journal article