Compact wavelength de-multiplexer design using slow light regime of photonic crystal waveguides

Date
2011
Advisor
Instructor
Source Title
Optics Express
Print ISSN
10944087
Electronic ISSN
Publisher
Optical Society of American (OSA)
Volume
19
Issue
24
Pages
24129 - 24138
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
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.

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Keywords
Finite difference time domain method, Laser 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
Citation
Published Version (Please cite this version)