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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Camparo, J.C. Frueholz, R.P. |
| Copyright Year | 1993 |
| Description | Author affiliation: Aerospace Corp., Los Angeles, CA, USA (Camparo, J.C.; Frueholz, R.P.) |
| Abstract | The phase delay that exists between the oscillating atomic system and the probing microwave field in a rubidium atomic clock is examined. This phase delay must be accounted for in the feedback control circuitry of the clock in order to maximize the device's short-term stability. It is found both experimentally and theoretically that the atomic phase delay can vary by more than 100/spl deg/, and that in the regime of normal clock operation it is a rapidly changing function of microwave power. Defining P/sub 0/ as the normal operating power entering the clock cavity, it is shown that at P/sub 0/ the phase-delay sensitivity to microwave power variations is maximized and on the order of ten degrees per dB. It is unadvisable to try to operate the clock at some different microwave power where this sensitivity is smaller, since the amplitude of the first harmonic signal is also maximized at P/sub 0/.< |
| Starting Page | 114 |
| Ending Page | 119 |
| File Size | 449463 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780309057 |
| DOI | 10.1109/FREQ.1993.367385 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-06-02 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Delay Atomic clocks Phase modulation Frequency Resonance Microwave devices Atom optics Feedback control Degradation Stability |
| Content Type | Text |
| Resource Type | Article |
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