Optical and Quantum Electronics

, Volume 19, Issue 5, pp 273–287

Spectral properties of asymmetrical optical directional couplers with periodic structures

Authors

  • R. März
    • Research Laboratories of Siemens AG
  • H. P. Nolting
    • Heinrich-Hertz Institut Berlin GmbH
Article

DOI: 10.1007/BF02032685

Cite this article as:
März, R. & Nolting, H.P. Opt Quant Electron (1987) 19: 273. doi:10.1007/BF02032685

Abstract

A comparison is made of co- and contradirectional couplers with periodic structures, with a view to their suitability as WDM devices for integrated optical systems. Expressions are obtained for the spectral response within the framework of a coupled-mode theory. It is shown that the competition between direct Bragg, Bragg-exchange and codirectional coupling in the contradirectional coupler leads to shifting and constriction of the stop bands. Calculations are made for a codirectional coupler with a new type of meander structure and for the contradirectional coupler.

Copyright information

© Chapman and Hall Ltd 1987