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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 24129–24138

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

Ahmet E. Akosman, Mehmet Mutlu, Hamza Kurt, and Ekmel Ozbay  »View Author Affiliations

Optics Express, Vol. 19, Issue 24, pp. 24129-24138 (2011)

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We demonstrate the operation of a compact wavelength de-multiplexer 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 OSA

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 27, 2011
Revised Manuscript: October 26, 2011
Manuscript Accepted: October 28, 2011
Published: November 10, 2011

Ahmet E. Akosman, Mehmet Mutlu, Hamza Kurt, and Ekmel Ozbay, "Compact wavelength de-multiplexer design using slow light regime of photonic crystal waveguides," Opt. Express 19, 24129-24138 (2011)

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