Phase matching in magneto-optic YIG films by waveguide temperature control |
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Authors: | Castera JP Meunier PL Dupont JM Carenco A |
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Affiliation: | Res. Center Lab., Thomson-CSF, Orsay, France; |
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Abstract: | Demonstrates the tuning of linear birefringence in magneto-optic planar thin-film waveguides by temperature adjustment. Using this method, phase matching between coupled TE/sub 0/ and TM/sub 0/ modes, a necessary condition for the integrated optical isolator based on mode conversion, has been obtained at lambda =1.52 mu m in bilayer gadolinium gallium-substituted YIG films. The waveguide temperature was 85 degrees C. Moreover, the phase-matching temperature can be modified by a slight variation of gadolinium and gallium substitutions as shown by a phase matching observed in a waveguide at room temperature.<> |
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