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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 7 — Apr. 4, 2005
  • pp: 2512–2530

Two-dimensional photonic-crystal-slab channel-drop filter with flat-top response

Yoshihiro Akahane, Takashi Asano, Hitomichi Takano, Bong-Shik Song, Yoshinori Takana, and Susumu Noda  »View Author Affiliations


Optics Express, Vol. 13, Issue 7, pp. 2512-2530 (2005)
http://dx.doi.org/10.1364/OPEX.13.002512


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Abstract

We report a theoretical and experimental study of a channel drop filter with two cascaded point-defects between two line-defects in a two-dimensional photonic-crystal slab. Using coupled-mode analysis and a three-dimensional finite-difference time-domain method, we design a filter to engineer the line shape of the drop spectrum. A flat-top and sharp roll-off response is theoretically and experimentally achieved by the designed and fabricated filters. Furthermore, we theoretically demonstrate that drop efficiency is increased dramatically, up to 93%, by introducing hetero-photonic crystals. We also describe a method to modify the bandwidth of the spectrum.

© 2005 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Research Papers

History
Original Manuscript: February 16, 2005
Revised Manuscript: March 19, 2005
Published: April 4, 2005

Citation
Yoshihiro Akahane, Takashi Asano, Hitomichi Takano, Bong-Shik Song, Yoshinori Takana, and Susumu Noda, "Two-dimensional photonic-crystal-slab channeldrop filter with flat-top response," Opt. Express 13, 2512-2530 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-7-2512


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References

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