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NEW RESULTS FOR WHISPERING GALLERY MODE CRYOGENIC SAPPHIRE MASER OSCILLATORS

    https://doi.org/10.1142/9789812838223_0049Cited by:0 (Source: Crossref)
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    Abstract:

    We report here results obtained with the Cryogenic Whispering Gallery Mode Sapphire Maser Resonator-Oscillator. The first characterization against the UWA cryogenic sapphire oscillator exhibited frequency instability of orders 10-14 at 1 second limited by the readout system we used. We also report, for the first time, on the measurement of the fundamental limit (thermal noise) for a microwave resonator.