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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 26 — Dec. 26, 2005
  • pp: 10768–10776

Wavelength demultiplexer consisting of Photonic crystal superprism and superlens

Takashi Matsumoto, Shinji Fujita, and Toshihiko Baba  »View Author Affiliations

Optics Express, Vol. 13, Issue 26, pp. 10768-10776 (2005)

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We propose a novel compact wavelength demultiplexer, for which two functions arising from the anomalous dispersion characteristics of photonic crystals are combined. One is the superprism that exhibits large angular dispersion and expansion of light beam. The other is the superlens used for the focusing of the expanded light beam. Theoretically, a high resolution of 0.4 nm will be realized in the 1.55 μm wavelength range with device areas of 0.2 and 2.0 mm2, respectively, for available bandwidths of 3 and 35 nm. Also, a low insertion loss of less than 1 dB is expected by the optimization of input and output ends of the photonic crystals. The demultiplexing function is clearly demonstrated in finite-difference time-domain simulation.

© 2005 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Research Papers

Takashi Matsumoto, Shinji Fujita, and Toshihiko Baba, "Wavelength demultiplexer consisting of Photonic crystal superprism and superlens," Opt. Express 13, 10768-10776 (2005)

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