Sub-femtosecond absolute timing jitter with a 10 GHz hybrid photonic-microwave oscillator
Sub-femtosecond absolute timing jitter with a 10 GHz hybrid photonic-microwave oscillator
We present an optical-electronic approach to generating microwave signals with high spectral purity. By circumventing shot noise and operating near fundamental thermal limits, we demonstrate 10 GHz signals with an absolute timing jitter for a single hybrid oscillator of 420 attoseconds (1Hz - 5 GHz).