학술논문

In- and out-coupling of light in photonic-crystal and conventional dielectric waveguides of arbitrary width
Document Type
Conference
Source
Proceedings of 2005 7th International Conference Transparent Optical Networks, 2005. Transparent Optical Networks Transparent Optical Networks, 2005, Proceedings of 2005 7th International Conference. 2:299-302 Vol. 2 2005
Subject
Photonics and Electrooptics
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Optical waveguides
Photonic crystals
Couplings
Dielectric substrates
Finite element methods
Etching
Lattices
Bandwidth
Time domain analysis
Gallium arsenide
Language
ISSN
2162-7339
Abstract
A new approach for light coupling between wire dielectric and photonic crystal waveguides, is investigated to optimize the transmission spectrum around 1550 nm. The approach is successfully proposed for input and output coupling with waveguides of arbitrary width, even much larger than the single line defect photonic crystal waveguide. It is shown that the displacement across the interface of the inner hole rows of the photonic crystal waveguide considerably enhances the coupling, resulting in transmission values higher than 90% over bandwidths of hundreds of nanometers.