High efficiency of graded index photonic crystal as an input coupler

Date
2009
Advisor
Instructor
Source Title
Journal of Applied Physics
Print ISSN
0021-8979
Electronic ISSN
1089-7550
Publisher
AIP Publishing LLC
Volume
105
Issue
10
Pages
103708-1 - 103708-5
Language
English
Type
Article
Journal Title
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Volume Title
Abstract

A graded index photonic crystal (GRIN PC) configuration was placed at the input side of a photonic crystal waveguide (PCW) in order to efficiently couple the light waves into the waveguide. We compared the transmission efficiencies of light in the absence and presence of the GRIN PC structure. We report a significant improvement in coupling when the GRIN PC is incorporated with the PCW. The intensity profiles were obtained by carrying out the experiments at microwave frequencies. Finite difference time domain based simulations were found to be in good agreement with our experimental results.

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Published Version (Please cite this version)