Optical and Quantum Electronics

, Volume 30, Issue 5–6, pp 369–373 | Cite as

Modification of the finite difference scheme for efficient analysis of thin lossy metallayers in optical devices

  • O. Conradi
  • S. Helfert
  • R. Pregla


A method is proposed for the analysis of optical devices with lossy metal layer by including an analytical formulation into the finite difference expressions. Losses of TM0 mode in an electro-optic switch for wavelength 1523 nm, exhibiting a sharp maximum of 37 dB are computed by this method. The results show very good agreement with the data obtained by the Mode Matching Method and Finite Difference Beam Propagation Method.


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  1. 1.
    M. D. Feit and J. A. Fleck, Appl. Opt. 17 (1978) 3990.Google Scholar
  2. 2.
    H. J. W. M. Hoekstra, Opt. Quantum Electron. 29 (1997) 157.Google Scholar
  3. 3.
    H. J. W. M. Hoekstra, G. J. M. Krijnen and P. V. Lambeck, J. Lightwave Technol. 10 (1992) 1352.Google Scholar
  4. 4.
    R. Pregla and W. Pascher, Numerical Techniques for Microwave and Millimeter Wave Passive Structures, edited by T. Itoh (J. Wiley Publ., New York, 1989) pp. 381-446.Google Scholar
  5. 5.
    R. Pregla, MoL BPM Method of Lines Based Beam Propagation Method. In Progress in Electromagnetics Research (EMW Publishing Cambrdige, Massachusetts, USA, 1995) 51-102.Google Scholar
  6. 6.
    T. Weiland, AEÜ 33 (1979) 170.Google Scholar
  7. 7.
    A. Driessen, H. M. M. Klein Koerkamp and T. J. A. Popma, Fiber Integrated Opt. 13 (1994) 445.Google Scholar
  8. 8.
    S. F. Helfert and R. Pregla, J. Lightwave Technol. 14 (1996) 2414.Google Scholar
  9. 9.
    C. Vassallo, IEE Proc.-J. 139 (1992) 137.Google Scholar

Copyright information

© Kluwer Academic Publishers 1998

Authors and Affiliations

  • O. Conradi
    • 1
  • S. Helfert
    • 1
  • R. Pregla
    • 1
  1. 1.Department of Electrical and Electronic EngineeringUniversity of BristolWoodland RoadUK

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