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Intermixing optical and microwave signals in GaAs microstrip circuits for phase-locking applications

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4 Author(s)
Li, M.G. ; Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA ; Chauchard, E.A. ; Lee, Chi H. ; Hung, H.-L.A.

The microwave modulation of the interference generated by optical beams that are reflected from the top and bottom surfaces of GaAs substrate adjacent to a microstrip line is studied. The detected modulation is used to directly characterize the electrooptic effect. This optical-microwave intermixing technique is applied to phase-lock a free-running microwave oscillator with picosecond laser pulses. One potential application of this technique is for the optical on-wafer characterization of MMICs (monolithic microwave integrated circuits)

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:38 ,  Issue: 12 )