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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 6 — Mar. 22, 2004
  • pp: 1119–1125

Dual wavelength demultiplexing by coupling and decoupling of photonic crystal waveguides

F. S.-S. Chien, Y.-J. Hsu, W.-F. Hsieh, and S.-C. Cheng  »View Author Affiliations


Optics Express, Vol. 12, Issue 6, pp. 1119-1125 (2004)
http://dx.doi.org/10.1364/OPEX.12.001119


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Abstract

We demonstrate that the fundamental mode of the two coupled photonic crystal waveguides (PCWs) can be odd parity in a triangular photonic crystal and their dispersion curves do intersect. Thus, the PCWs are decoupled at the crossing point. By employing the decoupling at the crossing-point frequency and ultra short coupling length for another frequency, we designed a dual-wavelength demultiplexer with a coupling length of only two wavelengths and output power ratio as high as 15 dB. A loop-shape PCW is adapted to eliminate the backward energy flow.

© 2004 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.4230) Fiber optics and optical communications : Multiplexing
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(230.7370) Optical devices : Waveguides
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Research Papers

History
Original Manuscript: February 17, 2004
Revised Manuscript: March 11, 2004
Published: March 22, 2004

Citation
F. S. Chien, Y. Hsu, W. Hsieh, and S. Cheng, "Dual wavelength demultiplexing by coupling and decoupling of photonic crystal waveguides," Opt. Express 12, 1119-1125 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-6-1119


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