Broadband amplitude and frequency demultiplexer for terahertz frequencies using parallel-plate-waveguides technologyOptics Letters
- Arturo Hernandez, Daniel Mittleman, and Emma Pickwell-MacPherson
- received 10/07/2019; accepted 11/17/2019; posted 11/22/2019; Doc. ID 379411
- Abstract: In this work we report a novel broadband frequency/polarization demultiplexer based on parallel-plates-waveguides (PPWG) for terahertz (THz) frequencies. The fabrication and experimental validation of this polarization sensitive demultiplexer is demonstrated for the range from 0.2 THz to 1 THz. By adding a second demultiplexer stage, a fifty-fifty amplitude splitter is also demonstrated in the same frequency range. The multiplexer is based on a traveling-wave antenna, exhibiting strong mechanical robustness. This unique device exhibits three splitting mechanisms in the same device; amplitude, polarization and frequency splitting. This is a significant improvement for the next generation of THz passive components for communication purposes.