Light Propagation Characteristics of Defect Waveguides in a Photonic Crystal Slab

  • Toshihiko Baba
  • Naoyuki Fukaya
Part of the NATO Science Series book series (ASIC, volume 563)


A channel waveguide composed of a series of defects in a uniform photonic crystal (PC) is an attractive device, in which two important properties of PCs, i.e., photonic bandgaps (PBGs) and defect states, are applied [1]. In conventional index-type waveguides, the guided light suffers large radiation loss at steep bends due to the weak optical confinement. It strongly restricts the flexibility of the optical wiring and makes photonic circuits so large as to be of the cm2 order. The PC waveguide has the potential for eliminating this restriction. It allows low-loss steep bends, Y-blanches, and short couplers owing to the strong optical confinement of PC claddings[2–4].


Photonic Crystal Light Cone Transverse Magnetic Transverse Electric Rectangular Waveguide 
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© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • Toshihiko Baba
    • 1
  • Naoyuki Fukaya
    • 1
  1. 1.Division of Electrical and Computer EngineeringYokohama National UniversityHodogayaku, YokohamaJapan

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