Title :
Experimental test of local oscillator-induced performance limitation for pulse-mode passive frequency standards
Author :
Dick, G.J. ; Stowers, D.A.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
31 May-2 Jun 1995
Abstract :
An experimental test of Local-Oscillator (L.O.) degradation of time-sequential passive oscillator performance was accomplished using the TAG-controlled crystal oscillator described in an accompanying paper. For this quantitative demonstration, an electronic frequency-counter discriminator replaced the trapped ion physics package in a closed-loop experiment. With a 10 second cycle time and 5 second dead time, L.O. limited stability was demonstrated in excellent agreement with theoretical calculations. The results are also in agreement with computer simulations and confirm previous noise analysis for the case of a passive standard with short pulse “Ramsey” interrogation
Keywords :
atomic clocks; crystal oscillators; frequency measurement; measurement standards; Ramsey interrogation; TAG-controlled crystal oscillator; closed-loop system; electronic frequency-counter discriminator; local oscillator; noise analysis; pulse-mode atomic frequency standard; stability; time-sequential passive oscillator; Atomic measurements; Degradation; Electron traps; Frequency; Laboratories; Local oscillators; Paper technology; Propulsion; Stability; Testing;
Conference_Titel :
Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2500-1
DOI :
10.1109/FREQ.1995.483899
