Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7085
Title: Low-loss multimode interference couplers for terahertz waves
Authors: Kalli, Kyriacos 
Themistos, Christos 
Komodromos, Michael 
Markides, Christos 
Quadir, Anita 
Rahman, Azizur B. M. 
Grattan, Kenneth T.V. 
Keywords: Finite differences;Optoelectronics;Polarization
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: Apr-2012
Publisher: Spie Digital Library
Source: Proceedings of SPIE - The International Society for Optical Engineering, 8426, art. no. 84260X; Microstructured and Specialty Optical Fibres, 17 - 19 April 2012, Brussels
Journal: Proceedings of SPIE - The International Society for Optical Engineering 
Conference: Microstructured and Specialty Optical Fibres 
Abstract: The terahertz (THz) frequency region of the electromagnetic spectrum is located between the traditional microwave spectrum and the optical frequencies, and offers a significant scientific and technological potential in many fields, such as in sensing, in imaging and in spectroscopy. Waveguiding in this intermediate spectral region is a major challenge. Amongst the various THz waveguides suggested, metal-clad plasmonic waveguides and specifically hollow core structures, coated with insulating material are the most promising low-loss waveguides used in both active and passive devices. Optical power splitters are important components in the design of optoelectronic systems and optical communication networks such as Mach-Zehnder Interferometric switches, polarization splitter and polarization scramblers. Several designs for the implementation of the 3dB power splitters have been proposed in the past, such as the directional coupler-based approach, the Y-junction-based devices and the MMI-based approach. In the present paper a novel MMI-based 3dB THz wave splitter is implemented using Gold/polystyrene (PS) coated hollow glass rectangular waveguides. The H-field FEM based full-vector formulation is used here to calculate the complex propagation characteristics of the waveguide structure and the finite element beam propagation method (FE-BPM) and finite difference time domain (FDTD) approach to demonstrate the performance of the proposed 3dB splitter.
ISBN: 978-081949118-3
ISSN: 0277-786X
DOI: 10.1117/12.925655
Rights: © SPIE.
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

Show full item record

Page view(s)

77
Last Week
1
Last month
5
checked on Aug 18, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.