17 February 2010 High-Q optical resonators: characterization and application to stabilization of lasers and high spectral purity microwave oscillators
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Proceedings Volume 7579, Laser Resonators and Beam Control XII; 75791B (2010) https://doi.org/10.1117/12.847164
Event: SPIE LASE, 2010, San Francisco, California, United States
Abstract
Microwave optical systems for frequency generation are described in this paper. The goal is to reach high spectral purity in the microwave frequency range using ultra high Q optical resonators. The resonators investigated are of two types : resonant (passive) fiber rings and WGM tridimensional resonators. They all feature ultra high optical Q factors, in excess of 108 or 109 near 1550 nm. These resonators also sustain a large number of optical resonances, and the microwave signal is stabilized on two (or more) resonances of this optical comb. Different problems have to be overcome in order to reach a functional system, such as : resonator design and coupling, laser stabilization on a resonance, overall system design, noise optimization... This paper gives an overlook on these problems, and on some solutions we found to work towards a compact and efficient microwave opto-electronic oscillator (OEO). A first result is presented on a 10 GHz OEO based on a resonant fiber ring.
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O. Llopis, P. H. Merrer, A. Bouchier, K. Saleh, G. Cibiel, "High-Q optical resonators: characterization and application to stabilization of lasers and high spectral purity microwave oscillators", Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75791B (17 February 2010); doi: 10.1117/12.847164; https://doi.org/10.1117/12.847164
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