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Control of a GaAs monolithic Ka-band phase shifter using a high-speed optical interconnect

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7 Author(s)

The use of a high-speed optical interconnect in the control of a Ka-band GaAs monolithic phase shifter is described. A 16-b serial control signal was used to modulate the output of a laser transmitter, and the transmitted optical signal was detected and demultiplexed into 16 parallel electrical outputs using a high-speed hybrid GaAs optoelectronic integrated circuit. Four of the parallel output lines were interfaced to the 4-b phase shifter, and high-speed, optically controlled switching of the phase shifter was observed at clock frequencies to 30 MHz using an interferometric technique

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:38 ,  Issue: 5 )