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Optically controlled GaAs MMIC switch using a MESFET as an optical detector
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Optically controlled GaAs MMIC switch using a MESFET as an optical detector

A Paolella, A Madjar, P.R Herczfeld and D Sturzebecher
IEEE International Digest on Microwave Symposium, v 2, pp 941-944
1990

Abstract

Gallium arsenide Integrated circuit modeling MESFET integrated circuits MMICs Optical control Optical switches Photoconductivity Photovoltaic systems Solar power generation Switching circuits
The optical control of an MMIC (monolithic microwave integrated circuit) switch by a MESFET photodetector is presented along with a novel model of the illuminated MESFET, which serves as a tool to optimize the switch's performance. The wavelength dependence of the response is emphasized, since it influences the relative contribution of the photovoltaic and photoconductive effects. A theoretical analysis accurately predicting the photocurrents in MESFETs operated in the pinched-off mode is presented. The analysis includes photovoltaic and photoconductive effects.< >

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