Title :
Kerr frequency comb-based Ka-band RF photonic oscillator
Author :
Ilchenko, Vladimir S. ; Byrd, Jason ; Savchenkov, Anatoliy A. ; Eliyahu, Danny ; Wei Liang ; Matsko, Andrey B. ; Seidel, David ; Maleki, Lute
Author_Institution :
OEwaves Inc., Pasadena, CA, USA
Abstract :
We report on the realization of a packaged RF photonic oscillator based on Kerr optical frequency comb generated in an ultra-high Q crystalline whispering gallery mode (WGM) resonator. The oscillator produces spectrally pure RF signals in Ka frequency band, characterized with single sideband phase noise of -110 dBc/Hz at 10 kHz. The stability of the free running oscillator is characterized with Allan deviation of 10-10 at 1 s. We also argue that usage of hyperparametric gain based on cubic nonlinearity of the host material of an optical microresonator as part of an Opto-Electronic Oscillator (OEO) loop allows achieving generation of low noise RF signals in microrezonator-based OEOs.
Keywords :
micromechanical resonators; microwave oscillators; microwave photonics; microwave resonators; optical Kerr effect; optical resonators; optical signal detection; phase noise; spectral analysis; whispering gallery modes; Allan deviation; Kerr frequency comb-based Ka-band RF photonic oscillator; Kerr optical frequency comb; Q crystalline WGM; cubic nonlinearity; frequency 10 kHz; hyperparametric gain; low noise RF signal generation; microrezonator-based OEO; optical microresonator; optoelectronic oscillator; oscillator stability; packaged RF photonic oscillator; sideband phase noise; spectrally pure RF signal production; time 1 s; whispering gallery mode; Nonlinear optics; Optical noise; Optical pumping; Optical resonators; Oscillators; Radio frequency; Resonant frequency; Optical whispering gallery mode resonator; opto-electronic oscillator; phase noise;
Conference_Titel :
European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 Joint
Conference_Location :
Prague
DOI :
10.1109/EFTF-IFC.2013.6702050
