Title :
Magnetostatic-forward-volume-wave-based guided-wave magneto-optic Bragg cells and applications to communications and signal processing
Author :
Tsai, Chen S. ; Young, David
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
Realization of magnetostatic forward volume wave (MSFVW)-based guided-wave magneto-optic (MO) Bragg cells and their applications to communications and signal processing are reported. Bragg diffraction of guided-optical waves from the MSFVW in a noncollinear coplanar geometry is analyzed. The design of microstrip line transducers that facilitate wideband MO Bragg diffraction with electronically tunable microwave carrier frequencies (2.0 to 12.0 GHz) are briefly discussed. Experimental results obtained with the resulting Bragg cells in both pure and bismuth-doped yttrium-iron-garnet (YIG) waveguides and a comparison to the theoretical predictions are presented. Applications of the Bragg cells to light beam modulation, scanning/switching, and RF spectral analysis are presented in detail
Keywords :
light diffraction; magneto-optical devices; magnetostatic wave devices; optical modulation; optical switches; 2 to 12 GHz; Bragg diffraction; RF spectral analysis; YFe5O12; YFe5O12:Bi; YIG waveguides; YIG:Bi waveguides; applications; communications; electronically tunable microwave carrier; guided-optical waves; guided-wave magneto-optic Bragg cells; light beam modulation; light beam scanning; light beam switching; magnetostatic forward volume wave; microstrip line transducers; noncollinear coplanar geometry; signal processing; theoretical predictions; wideband MO Bragg diffraction; Diffraction; Frequency; Geometry; Magnetic analysis; Magnetostatic waves; Microstrip; Microwave communication; Signal processing; Transducers; Wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
