Analysis of Silicon Clad Optical Waveguide for High Extinction Ratio TE/TM Pass Polarizers using Resonant Coupling between Guided Modes and Lossy Modes
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 3
Abstract
Attenuation characteristics of a planar silicon-clad ion exchange glass waveguide structure are investigated theoretically at the optical wavelength of 0.6328 µm. An oscillatory behaviour of the attenuation curves is noticed in the proposed four layer structure. It is observed that by varying the thickness of silicon cladding layer, the TE or TM propagating modes may be selectively attenuated. This characteristic can be used to design a high extinction ratio and low insertion loss TE or TM pass polarizer. For the analysis of both polarizations, effective indices are calculated at various thicknesses of Silicon cladding layer using Transfer Matrix Method (TMM). At an optimum Silicon thickness, polarizer parameters like insertion loss and extinction ratio are calculated and tabulated. This paper provides rigorous analysis for silicon clad waveguide polarizer parameters for TE as well as TM polarization using same structure. A TM pass polarizer with extinction ratio of about 690 dB and insertion loss of about 2.8 dB and a TE pass polarizer with extinction ratio of about 289 dB and insertion loss of about 1.5 dB is proposed for a length of 1mm.
Authors and Affiliations
Rakesh Saini, Manoj Kumar, Anil Kumar, Geeta Bhatt, Manoj K. Khanna, Avinashi Kapoor
Keywords
Related Articles
- EP ID EP387258
- DOI 10.9790/1676-1203035964.
- Views 136
- Downloads 0
Implementation of New Three Phase Modular Multilevel Inverter for Renewable Energy Applications
This project proposes a new three-phase modular multilevel inverter (MMLI) for renewable applications. The cascaded multilevel inverters are the most favourable topologies of multilevel converters. This project introduce...
Biogas from biodigester as energy source for Stirling engine prototype constructed from recyclable materials
Fish farm and fish industries production has been growing steadily, being great food sources and nutrition in Brazil and others countries. Its development also leads to an increase in the organic solid wastes generation...
Solving Economic Dispatch Problem with Valve-Point Effect using Bat Algorithm
This paper presents application of bat algorithm (BA) for solving economic dispatch (ED) problem considering valve-point effect and transmission losses. The practical ED problems have non-smooth cost function with equali...
Impact of Torsional Resonance in Turbine-Generator Shaft Due to Multiple EAF Operation
Among the many nonlinear loads, electric arc furnace (EAF) is a potential source of sub-harmonic currents. Again, turbine-generator (T-G) shaft possesses natural frequencies in the sub-synchronous/subharmonic range. If t...
Fault Detection in an Induction Motor Drive Using Discrete Wavelet Packet Transform
The aim of this study is to employ the wavelet technique for diagnosis of open-circuit and short circuit faults in the dc link of Induction motor drive. The symlet wavelet is selected as the wavelet base to perform stato...