INTEGRATED MAGNETOOPTIC BRAGG CELL MODULATOR IN YTTRIUM IRON GARNET-GADOLINIUM GALLIUM GARNET TAPER WAVE-GUIDE AND APPLICATIONS

An integrated magnetooptic (MO) device which consists of an ion-milled collimation-focusing lens pair and a guided-wave MO Bragg cell modula tor in a yttriun iron garnet-gadolinium gallium garnet (TIG-GGG) taper waveguide substrate with dimensions of 6.0 x 16.0 mm(2) has been real ized for the first time, Performance characteristics of the waveguide lenses including the focal spot size, sidelobe level and throughput, a nd that of the integrated MO Bragg cell modulator using the magnetosta tic forward volume wave (MSFVW) at X-band carrier frequency including the bandwidth, diffraction efficiency, dynamic range, and frequency re solution have been measured at the optical wavelength of 1.303 mu m. S canning of the focused diffracted light beam by varying the carrier fr equency of the MSFVW and RF spectral analysis by simultaneous applicat ion of multiple microwave frequencies have been demonstrated.