Abstract

We reported at the 1984 Topical Meeting on Integrated and Guided-Wave Optics experimental observations on diffraction and mode-conversion of guided-optical waves at 1.152-μm wavelength in a YIG-GGG waveguide by the magnetostatic surface waves (MSSW) in a noncollinear coplanar configuration in which the propagation directions of the incident and diffracted light waves were nearly orthogonal to that of the MSSW (Fig. 1).¹ Specifically, by tuning both the dc magnetic field and the carrier frequency of the MSSW a bandwidth as large as 4 GHz, namely, from 3.0 to 7.0 GHz, was measured. We present a detailed theory that has been developed most recently to verify the experimental observation referred to above. The theoretical predictions have also been found to agree with the additional results obtained with the most recent experiments at 1.302-μm wavelength. Both the theoretical treatment and results of these most recent experiments will be reported.

© 1986 Optical Society of America