Phase noise reduction and spurious suppression in oscillators utilizing self-injection loops

Dual loop self-injection locking has been proposed for phase noise reduction and side-mode suppression in microwave oscillators. Experiments for both electrical and opto-electronic oscillator at 10 GHz that incorporate dual loop self-injection locking are performed to demonstrate the concept of self-injection locking (SIL) and provide insights into the behavior of microwave oscillators employing such techniques.

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