Low-Loss THz Waveguide Bragg Grating using a Two-Wire Waveguide and a Paper Grating

Abstract

We propose a novel kind of the low-loss THz Waveguide Bragg Grating (TWBG) fabricated using plasmonic two-wire waveguide and a micromachined paper grating for potential applications in THz communications. Two TWBGs were fabricated with different periods and lengths. Transmission spectra of these TWBGs show 17 dB loss and 14 dB loss in the middle of their respective stop bands at 0.637 THz and 0.369 THz. Insertion loss of 1-4 dB in the whole 0.1-0.7 THz region was also measured. Finally, TWBG modal dispersion relation, modal loss and field distributions were studied numerically, and low-loss, high coupling efficiency operation of TWBGs was confirmed.

References in corpus (2)

• Two-wire Terahertz Fibers with Porous Dielectric Support
• Resonant THz sensor for paper quality monitoring using THz fiber Bragg gratings

Cited by in corpus (2)

• Add drop multiplexers for terahertz communications using two-wire waveguide based plasmonic circuits
• Terahertz birefringent gratings for filtering and dispersion compensation