Compact wavelength de-multiplexer design using slow light regime of photonic crystal waveguides
Author
Akosman, A.E.
Mutlu, M.
Kurt H.
Özbay, Ekmel
Date
2011Source Title
Optics Express
Print ISSN
10944087
Publisher
Optical Society of American (OSA)
Volume
19
Issue
24
Pages
24129 - 24138
Language
English
Type
ArticleItem Usage Stats
146
views
views
102
downloads
downloads
Abstract
We demonstrate the operation of a compact wavelength demultiplexer using cascaded single-mode photonic crystal waveguides utilizing the slow light regime. By altering the dielectric filling factors of each waveguide segment, we numerically and experimentally show that different frequencies are separated at different locations along the waveguide. In other words, the beams of different wavelengths are spatially dropped along the transverse to the propagation direction. We numerically verified the spatial shifts of certain wavelengths by using the two-dimensional finite-difference time-domain method. The presented design can be extended to de-multiplex more wavelengths by concatenating additional photonic crystal waveguides with different filling factors. © 2011 Optical Society of America.
Keywords
Finite difference time domain methodLaser optics
Multiplexing
Optical waveguides
Slow light
Time domain analysis
Waveguides
Dielectric filling
Different frequency
Filling factor
Light regime
Photonic crystal waveguide
Propagation direction
Single-mode photonic crystal
Waveguide segments
Wavelength demultiplexers
Photonic crystals
article
computer aided design
computer simulation
crystallization
equipment
equipment design
instrumentation
photon
refractometry
surface plasmon resonance
theoretical model
Computer Simulation
Computer-Aided Design
Crystallization
Equipment Design
Equipment Failure Analysis
Models, Theoretical
Photons
Refractometry
Surface Plasmon Resonance
Permalink
http://hdl.handle.net/11693/21713Published Version (Please cite this version)
http://dx.doi.org/10.1364/OE.19.024129Collections
Related items
Showing items related by title, author, creator and subject.
-
Dual-frequency division de-multiplexer based on cascaded photonic crystal waveguides
Akosman, Ahmet E.; Mutlu, Mehmet; Kurt, H.; Özbay, Ekmel (Elsevier, 2012-02-28)A dual-frequency division de-multiplexing mechanism is demonstrated using cascaded photonic crystal waveguides with unequal waveguide widths. The de-multiplexing mechanism is based on the frequency shift of the waveguide ... -
Investigation of localized coupled-cavity modes in two-dimensional photonic bandgap structures
Özbay, Ekmel; Bayındır, Mehmet; Bulu, I.; Cubukcu, E. (IEEE, 2002)We present a detailed study of the localized coupled-cavity modes in 2-D dielectric photonic crystals. The transmission, phase, and delay time characteristics of the various coupled-cavity structures are measured and ... -
Tight-binding mechanism in slow light regime
Akosman, Ahmet Emin; Mutlu, Mehmet; Kurt, Hamza; Özbay, Ekmel (IEEE, 2011)In this study, tight-binding formalism is applied to a photonic crystal coupled cavity structure in order to investigate the characteristics of ultra slow light modes. Eigen-mode splitting is observed and resulting group ...