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NASA NTRS · 20060051537

Progress Report for a New Cryogenic Sapphire Oscillator

Wang, Rabi T.·Dick, G. J.·Tjoelker, R. L.
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Abstract

We present design progress and subsystem test results for a new short-term frequency standard, the Voltage Controlled Sapphire Oscillator (VCSO). Included are sapphire resonator and coupling design, cryocooler environmental sensitivity tests, Q measurement results, and turnover temperature results. A previous report presented history of the design related to resonator frequency and frequency compensation [1]. Performance goals are a frequency stability of 1x10(exp -14) (1 second less than or equal to (tau) less than or equal to 100 seconds) and two years or more continuous operation. Long-term operation and small size are facilitated by use of a small Stirling cryo-cooler (160W wall power) with an expected 5 year life.

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Wang, Rabi T., Dick, G. J., Tjoelker, R. L.. 2006-01-01. Progress Report for a New Cryogenic Sapphire Oscillator. https://ntrs.nasa.gov/citations/20060051537

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