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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 3 — Jan. 20, 1997
  • pp: 635–641

Directional coupler based on radiatively coupled waveguides

M. Shamonin, M. Lohmeyer, and P. Hertel  »View Author Affiliations


Applied Optics, Vol. 36, Issue 3, pp. 635-641 (1997)
http://dx.doi.org/10.1364/AO.36.000635


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Abstract

We investigate a system of two waveguides with leaky modes sharing a common substrate (radiatively coupled waveguides). The main advantage of such a system is the possibility of remote coupling. A perturbation theory is developed for both TE and TM polarization. Numerical calculations of dispersion curves and of the coupling length allow us to determine the limitations of the perturbation theory. We study the influence of multimode interference on the process of beating by considering the propagation of a given initial field. Finally, we propose a new design for an effective, integrated optical TE–TM polarization splitter.

© 1997 Optical Society of America

History
Original Manuscript: December 6, 1995
Revised Manuscript: April 29, 1996
Published: January 20, 1997

Citation
M. Shamonin, M. Lohmeyer, and P. Hertel, "Directional coupler based on radiatively coupled waveguides," Appl. Opt. 36, 635-641 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-3-635


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