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Circuit model for efficient analysis and design of photonic crystal devices

Khavasi, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1088/2040-8978/14/12/125502
  3. Publisher: 2012
  4. Abstract:
  5. We substitute different types of photonic crystal waveguide components by approximate transmission line circuits. The proposed distributed circuits exploit the analogy of wave propagation in photonic crystal waveguides and transmission lines. They are either cascaded to each other or inserted like stubs to imitate wave propagation within the photonic structure. Notable examples, e.g. coupled waveguide-cavity systems, sharp 90° bends, and T-junctions, are studied in detail. It is shown that analysis of the proposed circuits here can yield accurate enough results and thus substitute the brute-force numerical methods. The privilege of having analytical models is exploited to improve the performance of sharp 90° bends and T-junctions. The presented results are verified by using the standard finite-difference time domain (FDTD) method
  6. Keywords:
  7. Circuit models ; Distributed circuits ; Efficient analysis ; Integrated photonics ; Photonic crystal devices ; Photonic crystal waveguide ; Photonic structure ; T junctions ; Circuit theory ; Electric lines ; Finite difference time domain method ; Laser optics ; Photonic crystals ; Photonics ; Time domain analysis ; Transmission line theory ; Waveguide components ; Optical waveguides
  8. Source: Journal of Optics (United Kingdom) ; Volume 14, Issue 12 , October , 2012 ; 20408978 (ISSN)
  9. URL: http://m.iopscience.iop.org/article/10.1088/2040-8978/14/12/125502;jsessionid=B613A73DF1701AE1A0394833A28D698E.c4.iopscience.cld.iop.org