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

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      Author
      Akosman, A.E.
      Mutlu, M.
      Kurt H.
      Özbay, Ekmel
      Date
      2011
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      19
      Issue
      24
      Pages
      24129 - 24138
      Language
      English
      Type
      Article
      Item Usage Stats
      146
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      102
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      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 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
      Permalink
      http://hdl.handle.net/11693/21713
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.19.024129
      Collections
      • Department of Electrical and Electronics Engineering 3608
      • Institute of Materials Science and Nanotechnology (UNAM) 1854
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