We have tested a new temperature-compensated sapphire resonator as frequency determining element for high-stability microwave oscillator. Temperature compensation has been obtained by coating the sapphire resonator with a thin rutile film. A 2-microm rutile thickness is sufficient to reach turnover temperature higher than 40 K, and a 2 X 10(-12) short-term frequency stability has been obtained.
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| http://dx.doi.org/10.1109/tuffc.2003.1256306 | DOI Listing |
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