First Annual Technical Report on ONR Grant No.: N00014-90-J-4039 (University of California, Irvine)
Rept. for 1 Jul 90-30 Jun 91,
CALIFORNIA UNIV IRVINE DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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Two major achievements have been made during the first program year July 1, 1990 to June 30, 1991 First, a compact magnetooptic forward volume wave-based guided-wave magnetooptic MO Bragg cell module has been realized by utilizing a small permanent magnet together with a current-carrying tuning coil. Performance characteristics comparable to those obtained using the bulk electromagnet have been obtained. Second, magnetostatic backward volume wave- based guided-wave MO Bragg cells have been realized, for the first time, and used to perform wide-angle light beam scanning by tuning the carrier frequency from UHF-to X-band. Although Magneto-optics in waveguide structures was among the areas actively pursued during the early phase of Guided-Wave Optics research, research activity in this area was greatly reduced between the mid 70s and early 80s. However, a revival of interest in this area has taken place recently. One subject of this renewed interest concerns collinear and noncollinear transverse Bragg magnetooptic MO interactions between guided- optical waves GOW and magnetostatic waves MSW in Yttrium Iron Garnet- Gadolinium Gallium Garnet YIG-GGG waveguides.
- Electricity and Magnetism