Frequency Stabilization of the Coupled Opto-Electronic Oscillator

Nan Yu, Ertan Salik, Meirong Tu, Lute Maleki

Abstract:	The Coupled Opto-Electronic Oscillator (COEO) is a system that couples an optical oscillator with the microwave oscillator. The COEO can be modeled as a photonic microwave oscillators using a mode-locked laser as the high-Q resonator, and has been shown to be capable of generating ultra-low phase noise microwave signals [N. Yu et al, Opt. Lett. V. 30, 1231 (2005)]. This configuration also provides the opportunity to link the stability of the two oscillators. In this paper, we will describe our recent phase-noise measurements of photonic microwave oscillators. We will also discuss our investigation of the frequency stability link between the optical and microwave frequencies in the coupled oscillator. This link is established by stabilizing the optical frequency to an atomic transition, the stability of which is transferred to the microwave signal. This system represents a unique architecture for drawing a stable microwave signal from the optical oscillator.
Published in:	Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting August 29 - 31, 2005 Vancouver, Canada
Pages:	857 - 860
Cite this article:	Yu, Nan, Salik, Ertan, Tu, Meirong, Maleki, Lute, "Frequency Stabilization of the Coupled Opto-Electronic Oscillator," Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting, Vancouver, Canada, August 2005, pp. 857-860.
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