Broadband high speed optoelectronic semiconductor switch

Details Broadband high speed optoelectronic semiconductor switch Broadband high speed optoelectronic semiconductor switch

H - Electricity

03

K

328/114.3

H03K 17/78 (2006.01) H03K 17/785 (2006.01) H04Q 3/52 (2006.01)

Patent

CA 1160697

TITLE BROADBAND HIGH SPEED OPTOELECTRONIC SEMICONDUCTOR SWITCH INVENTORS Elmer H. Hara R. Ian MacDonald Robert S.H. Hum Brian S. Kawasaki ABSTRACT OF THE DISCLOSURE The optoelectronic switch includes a photosensitive GaAs FET onto which an optical signal may be directed. The optical signal is derived from an RF modulated light source. A voltage circuit is connected to the FET to switch the FET "on" or "off" by placing a positive or zero voltage ively on the drain. An isolation of over 70 dB is obtained in this FET switch.

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