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Optical and Quantum Electronics

, Volume 31, Issue 9–10, pp 877–891 | Cite as

Radiatively coupled waveguide polarization splitter simulated by wave-matching-based coupled mode theory

  • M. Lohmeyer
  • N. Bahlmann
  • O. Zhuromskyy
  • P. Hertel
Article

Abstract

Coupled mode theory is applied to an arrangement of three raised strip waveguides with a multimode central strip. We use semivectorial numerically computed modes of the three single isolated waveguides as a basis for propagating supermode analysis of the entire structure. The pronounced polarization dependence of the raised strip guides allows for the design of a conveniently short polarization splitter. We discuss design guidelines and estimate the fabrication tolerances. The accuracy of the coupled mode approach is assessed by comparison with rigorously computed supermodes for comparable two waveguide couplers. Both types of structures indicate the limits in the applicability of the coupled mode model.

coupled mode theory dielectric waveguides integrated optics numerical modeling polarization splitter 

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References

  1. Chen, K.L. and S. Wang. The Crosstalk in Three-Waveguide Optical Directional Couplers. IEEE Journal of Quantum Electronics 22(7) 1039–1041, 1986.Google Scholar
  2. Chuang, S.L. A Coupled Mode Formulation by Reciprocity and a Variational Principle. Journal of Lightwave Technology 5(1) 5–15, 1987.Google Scholar
  3. Donelly, J.P. Limitations on Power Transfer Efficiency in Three-Guide Optical Couplers. IEEE Journal of Quantum Electronics 22(5) 610–616, 1986.Google Scholar
  4. Donelly, J.P. and H.A. Haus. Symmetric Three-Guide Optical Coupler with Nonidentical Center and Outside Guides. IEEE Journal of Quantum Electronics 23(4) 401–406, 1987.Google Scholar
  5. Hall, D.G. and B.J. Thompson (eds) Selected Papers on Coupled-Mode Theory in Guided-Wave Optics, Vol. MS 84 of SPIE Milestone Series, SPIE Optical Engineering Press, Bellingham, Washington USA, 1993.Google Scholar
  6. Haus, A. and C.G. Fonstad. Three-Waveguide Couplers for Improved Sampling and Filtering. IEEE Journal of Quantum Electronics 17(12) 2321–2325, 1981.Google Scholar
  7. Huang, W.P. Coupled mode theory for optical waveguides: an overview. Journal of the Optical Society of America A 11(3) 963–983, 1994.Google Scholar
  8. Lohmeyer, M. Wave-matching method for mode analysis of dielectric waveguides. Optical and Quantum Electronics 29 907–922, 1997.Google Scholar
  9. Lohmeyer, M., N. Bahlmann and P. Hertel. Geometry tolerance estimation for rectangular dielectric waveguide devices by means of perturbation theory. Optics Communications 163(1–3) 86–94, 1999.Google Scholar
  10. Lohmeyer, M., M. Shamonin, N. Bahlmann, P. Hertel and H. Dötsch. Radiatively coupled waveguide concept for an integrated magneto-optic circulator. In High-Density Magnetic Recording and Integrated Magneto-Optics: Materials and Devices, K. Rubin, J.A. Bain, T. Nolan, D. Bogy, B.J.H. Stadler, M. Levy, J.P. Lorenzo, M. Mansuripur, Y. Okamura and R. Wolfe, (eds) vol. 517, 519–524, MRS Symposium Proceedings Series. 1998.Google Scholar
  11. Lohmeyer, M., M. Shamonin and P. Hertel. Integrated Optical Circulator based on Radiatively Coupled Waveguides. Optical Engineering 36(3) 889–895, 1997.Google Scholar
  12. Loktev, S.M., V.A. Sychugov and B.A. Usievich. Propagation of light in a system of two radiatively coupled waveguides. Sov. Journal of Quantum Electronics 24(5) 435–438, 1994.Google Scholar
  13. Press, W.H., B.P. Flannery, S.A. Teukolsky and W.T. Vetterling. Numerical Recipes in C, 2nd ed. Cambridge University Press, 1992.Google Scholar
  14. Shamonin, M., M. Lohmeyer and P. Hertel. Analysis of Power-Dependent Switching Between Radiatively Coupled Planar Waveguides. Journal of Lightwave Technology 15(6) 983–989, 1997a.Google Scholar
  15. Shamonin, M., M. Lohmeyer and P. Hertel. Directional coupler based on radiatively coupled waveguides. Applied Optics 36(3) 635–641, 1997b.Google Scholar
  16. Vassallo, C. Optical Waveguide Concepts, Elsevier, Amsterdam, 1991.Google Scholar
  17. Wallenhorst, M., M. Niemöller, H. Dötsch, P. Hertel, R. Gerhardt and B. Gather. Enhancement of the nonreciprocal magneto-optic effect of TM modes using iron garnet double layers with opposite Faraday rotation. Journal of Applied Physics 77(7) 2902–2905, 1995.Google Scholar

Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • M. Lohmeyer
    • 1
  • N. Bahlmann
    • 1
  • O. Zhuromskyy
    • 1
  • P. Hertel
    • 1
  1. 1.Department of PhysicsUniversity of OsnabrückOsnabrückGermany (

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