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Optics Express

Optics Express

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

Optics InfoBase > Optics Express > Volume 12 > Issue 6 > Page 1119

Dual wavelength demultiplexing by coupling and decoupling of photonic crystal waveguides

F. S. Chien, Y. Hsu, W. Hsieh, and S. 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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