Phase matching in symmetrical single-mode magneto-optic waveguides by application of stress

Dammann, H.; Pross, E.; Rabe, G.; Tolksdorf, W.; Zinke, M.
December 1986
Applied Physics Letters;12/29/1986, Vol. 49 Issue 26, p1755
Academic Journal
Tuning of the propagation constant difference Δβ=βTM-βTE in single-mode symmetrical yttrium iron garnet (YIG) film waveguides over a range of 250°/cm by means of external stress is demonstrated. An a posteriori, precise setting of phase match Δβ→0, which is a precondition for nonreciprocal mode coupling type components, can be achieved by this method.


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