Title :
Intermixing optical and microwave signals in GaAs microstrip circuits for phase-locking applications
Author :
Li, Ming G. ; Chauchard, Eve A. ; Lee, Chi H. ; Hung, Hing-Loi A.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
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)
Keywords :
III-V semiconductors; MMIC; electro-optical effects; electromagnetic wave interference; gallium arsenide; integrated circuit testing; light reflection; optical modulation; phase control; strip line components; GaAs; GaAs substrate; MMICs; electrooptical effect characterisation; free-running microwave oscillator; interference; microstrip circuits; microwave modulation; monolithic microwave integrated circuits; optical beam reflection; optical on-wafer characterization; optical-microwave intermixing technique; phase-locking applications; picosecond laser pulses; Electrooptic effects; Electrooptic modulators; Gallium arsenide; Interference; MMICs; Microstrip; Microwave generation; Microwave theory and techniques; Optical beams; Optical modulation;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
