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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 7, Iss. 4 — Apr. 1, 2009
  • pp: 309–311

Compact and broadband waveguide taper based on partial bandgap photonic crystals

Jin Hou, Dingshan Gao, Huaming Wu, and Zhiping Zhou  »View Author Affiliations


Chinese Optics Letters, Vol. 7, Issue 4, pp. 309-311 (2009)


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Abstract

Partial bandgap characteristics of parallelogram lattice photonic crystals are proposed to suppress the radiation modes in a compact dielectric waveguide taper so as to obtain high transmittance in a large wavelength range. Band structure of the photonic crystals shows that there exists a partial bandgap. The photonic crystals with partial bandgap are then used as the cladding of a waveguide taper to reduce the radiation loss efficiently. In comparison with the conventional dielectric taper and the complete bandgap photonic crystal taper, the partial bandgap photonic crystal taper has a high transmittance of above 85% with a wide band of 170 nm.

© 2009 Chinese Optics Letters

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(230.7370) Optical devices : Waveguides
(160.5298) Materials : Photonic crystals

Citation
Jin Hou, Dingshan Gao, Huaming Wu, and Zhiping Zhou, "Compact and broadband waveguide taper based on partial bandgap photonic crystals," Chin. Opt. Lett. 7, 309-311 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-4-309

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