Optically controlled oscillator

Details Optically controlled oscillator Optically controlled oscillator

1992-11-02

1994-09-13

Pascal, Robert J.

Oscillators

With device responsive to external physical condition

Temperature or light responsive

331117FE, 331172, 331177R, 307311, G01J 500

Patent

active

053472357

ABSTRACT:
An optically controlled oscillator circuit having an oscillator field eff transistor (FET) and having a separate light sensing quench FET. The optically controlled oscillator circuit includes, a light source, a control connected to the light source, an optic fiber having an end coupled to the light source, a quench field effect transistor (FET) coupled to a second end of the optic fiber, an oscillator FET, each FET being a GaAs multi-finger FET having drains and sources and gates, and a circuit connected in series circuit through the drains and sources of the quench FET and oscillator FET across a source of positive voltage.

REFERENCES:
patent: 4814774 (1989-03-01), Herczfeld
patent: 4859965 (1989-08-01), Paolella et al
patent: 5086281 (1992-02-01), Paolella
patent: 5198783 (1993-03-01), Jemison et al.

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