ELECTRO-OPTICAL AMPLIFIER OF ELECTRICAL SIGNALS Russian patent published in 2010 - IPC H03F17/00 G02B26/08 G02F1/39 H04B10/00 

FIELD: physics.

SUBSTANCE: electro-optical amplifier (EOA) has a detecting element (DE) with a mirror surface whose spatial position varies under the effect of electrical signals (ES), wherein terminals for connection to the electrical signal detecting element are the input of the EOA, a plate with a mirror surface which faces the detecting element, an optical source directed at the mirror surface of the plate or detecting element, and a photodetector whose output is the output of the EOA. The principle of operation of the EOA is based on conversion of an electrical signal to spatial oscillations of an optical beam using the detecting element, amplification of these oscillations and their conversion to an electrical signal using the photodetector. The detecting element used can be a piezoelectric plate for example. Amplitude gain of spatial oscillations of the optical beam takes place during its propagation between the detecting element and the mirror plate through successive reflection from each one of them. High amplification factor is provided by multiple reflection of the optical beam from the oscillating detecting element.

EFFECT: increased sensitivity, noise immunity, electromagnetic compatibility, stealth operation of the electrical signal processing apparatus.

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