Conference Proceedings
New results for whispering gallery mode cryogenic sapphire maser oscillators
K Benmessai, PY Bourgeois, N Bazin, Y Kersalé, V Giordano, M Oxborrow, DL Creedon, JG Hartnett, ME Tobar
Proceedings of the 7th Symposium on Frequency Standards and Metrology Isfsm 2008 | WORLD SCIENTIFIC PUBL CO PTE LTD | Published : 2009
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.