Multimode Interference 3 dB Splitters in Hollow Core Metallic Waveguides for Low-Loss THz Wave Transmission

Abstract

This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1Abstract-A multimode interference half-power splitter on hollow core polysterene-coated metallic waveguide is demonstrated in the present work. The modal properties, propagation length, optical field evolution and dispersion of the above device have been investigated using the full vectorial finite element-based modal analysis and beam propagation method, as well as the finite difference time domain approach.

Emergence of THz technologies and design and optimisation low-loss waveguides and devices

“…In Fig. 11, it is shown here that an efficient power splitter can be designed by using a 35 μm long multimoded section [14]. A Finite Difference Time Domain (FDTD) approach is used here to simulate this structure.…”

Low-loss waveguides for THz guidance and devices

“…In that spirit, it is shown here that a compact power splitter can b designed by using the MMI principle. In figure 10, it is shown here that an efficient power splitter can be designed by using a 35 m long multimoded section [17]. BCB substrate height, h (µm) 20 In um Finally, a Terahertz frequency range band-stop filter for molecular sensing [18], where two 5 μm wide band-stop filter stubs with a length of 192 μm and 83 μm are placed at a 400 m apart along the direction of propagation, as shown in the right inset of Fig.11, has been considered.…”

Low-loss waveguides and devices for compact THz systems

“…In Fig. 14, it is shown here that an efficient power splitter can be designed by using a 35 m long multimoded section [17]. Finally, a Terahertz frequency range band-stop filter for molecular sensing [18], where two 5 μm wide band-stop filter stubs with a length of 192 μm and 83 μm are placed at a 400 m apart along the direction of propagation, as shown in the right inset of Fig.15, has been considered.…”