ISSN:
1432-0649
Keywords:
42.60
;
42.80
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A time standard based on the use of an optical oscillation period of a frequencystable He−Ne laser as a time scale is first described. We obtained highly frequency-stable oscillations in the SHF range that were locked to the oscillations of a He−Ne laser stabilized to an absorption resonance in methane at 3.39 μm. A direct comparison of frequency stabilities of a rubidium standard and He−Ne/CH4 laser has been made. The absolute measurement of the frequency of the He−Ne/CH4 laser we performed gave a new value of frequency.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00694370
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