Optical/microwave circuits with negative resistance

The transformation of an optical signal in a microwave range allows increasing a processing speed of an optical signal. But the problem of a highly sensitive reception of a signal remains actual. The use of photodiodes and field effect transistors with a Schottky barrier is accompanied by significant losses of an optical signal. Optically controlled microwave circuits with a negative resistance - negatrons allows one to increase sensitivity of transformation and to reduce losses of an optical signal. The purpose of the article is the analysis of a possibility of application of various types of microwave circuits with a negative resistance for transformation of an optical signal. Also in this paper active measuring transducer (AT) based on microwave circuits with a negative resistance are represented.