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Applied Optics

Applied Optics


  • Vol. 29, Iss. 18 — Jun. 20, 1990
  • pp: 2741–2744

Integrated optical isolator based on nonreciprocal-mode cut-off

H. Hemme, H. Dötsch, and P. Hertel  »View Author Affiliations

Applied Optics, Vol. 29, Issue 18, pp. 2741-2744 (1990)

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A concept of an integrated optical isolator is presented which uses the TM0 mode propagating perpendicular to the in-plane the magnetization of a planar magnetooptical waveguide. The cut-off thickness of the waveguide depends on the propagation direction. If the magnetic film has a strong Faraday rotation and is weakly guiding, the cut-off thicknesses for forward and backward propagation differ markedly. Operating close to cut-off yields a large difference between coupling efficiencies to the waveguide for forward and backward propagation.

© 1990 Optical Society of America

Original Manuscript: October 25, 1989
Published: June 20, 1990

H. Hemme, H. Dötsch, and P. Hertel, "Integrated optical isolator based on nonreciprocal-mode cut-off," Appl. Opt. 29, 2741-2744 (1990)

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