Title :
Whispering-gallery mode based opto-electronic oscillators
Author :
Savchenkov, A.A. ; Ilchenko, V.S. ; Byrd, J. ; Liang, W. ; Eliyahu, D. ; Matsko, A.B. ; Seidel, D. ; Maleki, L.
Author_Institution :
OEwaves Inc., Pasadena, CA, USA
Abstract :
We present our recent results related to the development of ultra-compact opto-electronic oscillators based on high-Q whispering gallery mode (WGM) resonators. These oscillators operate in X-, Ku-, and Ka-bands and are able to generate spectrally pure RF signals characterized with less than -120 dBc/Hz phase noise at 100 kHz. The floor of the phase noise (<; -140 dBc/Hz) is limited by the shot noise of the signal received at the photodiode. Both tunable and fixed frequency oscillators are demonstrated.
Keywords :
microwave oscillators; millimetre wave oscillators; optoelectronic devices; phase noise; photodiodes; shot noise; whispering gallery modes; frequency 100 kHz; high-Q whispering gallery mode resonators; phase noise; photodiode; shot noise; ultracompact optoelectronic oscillators; Optical attenuators; Optical resonators; Optical saturation; Phase noise; Radio frequency; Microwave Oscillators; Opto-Electronic Oscillators; Oscillator Noise; Oscillator Stability; Tunable Oscillators; Whispering-Gallery Mode Resonators;
Conference_Titel :
Frequency Control Symposium (FCS), 2010 IEEE International
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4244-6399-2
DOI :
10.1109/FREQ.2010.5556268
