Applied physics

, Volume 15, Issue 4, pp 377–384 | Cite as

Symmetric first-order Bragg interactions in an active dielectric waveguide

  • S. R. Seshadri
Contributed Papers


Simple and asymptotically exact dispersion relations describing the symmetric first-order Bragg interactions in an active planar dielectric waveguide have been deduced for the case of even TE modes. Either the index or the gain is assumed to have a sinusoidal variation in the propagation direction. The guided wave is absolutely unstable in the first-order Bragg region and the characteristics of this instability have been examined. The mode theory is used to obtain the exact dispersion relation from which, by a perturbation expansion, the first-order dispersion relations are determined.


42.82 42.20 


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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • S. R. Seshadri
    • 1
  1. 1.Department of Electrical and Computer EngineeringThe University of WisconsinMadisonUSA

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