Reduction of FM noise in impatt oscillators by optical illumination |
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| Authors: | Seeds A.J. Forrest J.R. |
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| Affiliation: | University College London, Microwave Research Unit, Electronic and Electrical Engineering Department, London, UK; |
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| Abstract: | Experiments are described in which laser illumination of the active device has reduced the FM noise output by up to 5 dB for a GaAs impatt oscillator and 2 dB for a Si impatt oscillator. A qualitative explanation of the observed results is given, and the effect of laser amplitude noise on the maximum noise reduction obtainable is shown. |
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