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Experimental investigation of the nonreciprocal phase shift of a transverse electric mode in a magneto-optic rib waveguide

Appl. Phys. Lett. 74, 2918 (1999); doi:10.1063/1.123965

Issue Date: 17 May 1999

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M. Fehndrich, A. Josef, L. Wilkens, J. Kleine–Börger, N. Bahlmann, M. Lohmeyer, P. Hertel, and H. Dötsch
Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany
Magnetic garnet films of composition (Nd,Lu,Bi)3(Fe,Al,Ga)5O12 are grown by liquid-phase epitaxy on [111] oriented substrates of gadolinium gallium garnet. They have positive uniaxial anisoptropy and support lattices of parallel stripe domains. A monomode optical rib waveguide is prepared by photolithography and ion-beam etching parallel to the (112-bar) direction, which is the preferred direction of the stripe domains. A magnetic domain pattern can be created such that a domain wall is located at the rib center while the adjacent walls stick to the flanks of the rib. At a wavelength of 1.3 µm a nonreciprocal phase shift of the guided fundamental transverse electric mode is observed. ©1999 American Institute of Physics.
History: Received 11 January 1999; accepted 19 March 1999
Permalink: http://link.aip.org/link/?APPLAB/74/2918/1
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KEYWORDS and PACS

Keywords
PACS
  • 85.70.Sq
    Electronic and magnetic devices; microelectronics Magnetic devices Magnetooptical devices
  • 85.70.Ge
    Electronic and magnetic devices; microelectronics Magnetic devices Ferrite and garnet devices
  • 42.82.Et
    Optics Integrated optics Waveguides, couplers, and arrays
  • 42.82.Cr
    Optics Integrated optics Fabrication techniques; lithography, pattern transfer
  • 75.50.Gg
    Magnetic properties and materials Studies of specific magnetic materials Ferrimagnetics
  • 75.60.Ch
    Magnetic properties and materials Domain effects, magnetization curves, and hysteresis Domain walls and domain structure
  • 75.70.Kw
    Magnetic properties and materials Magnetic films and multilayers Domain structure (including magnetic bubbles)
  • 78.20.Ls
    Optical properties, condensed-matter spectroscopy and other interactions of radiation and particles with condensed matter Optical properties of bulk materials and thin films Magnetooptical effects
  • YEAR: 1999

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (13)
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