Asymmetric light propagation in chirped photonic crystal waveguides
Author
Kurt H.
Yilmaz, D.
Akosman, A.E.
Özbay, Ekmel
Date
2012Source Title
Optics Express
Print ISSN
10944087
Publisher
Optical Society of American (OSA)
Volume
20
Issue
18
Pages
20635 - 20646
Language
English
Type
ArticleItem Usage Stats
132
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views
110
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downloads
Abstract
We report numerical and experimental investigations of asymmetric light propagation in a newly designed photonic structure that is formed by creating a chirped photonic crystal (PC) waveguide. The use of a non-symmetric distribution of unit cells of PC ensures the obtaining of asymmetric light propagation. Properly designing the spatial modulation of a PC waveguide inherently modifies the band structure. That in turn induces asymmetry for the light's followed path. The investigation of the transmission characteristics of this structure reveals optical diode like transmission behavior. The amount of power collected at the output of the waveguide centerline is different for the forward and backward propagation directions in the designed configuration. The advantageous properties of the proposed approach are the linear optic concept, compact configuration and compatibility with the integrated photonics. These features are expected to hold great potential for implementing practical optical rectifier-type devices. © 2012 Optical Society of America.
Keywords
Laser opticsLight propagation
Photonics
Waveguides
Backward propagation
Centerlines
Chirped photonic crystals
Experimental investigations
Integrated photonics
Linear optics
Optical diodes
PC waveguides
Photonic structure
Spatial modulations
Transmission behavior
Transmission characteristics
Unit cells
Light transmission
article
computer aided design
computer simulation
equipment design
equipment failure analysis
instrumentation
light
radiation scattering
surface plasmon resonance
theoretical model
Computer Simulation
Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Light
Models, Theoretical
Scattering, Radiation
Surface Plasmon Resonance
Permalink
http://hdl.handle.net/11693/21359Published Version (Please cite this version)
http://dx.doi.org/10.1364/OE.20.020635Collections
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