International Comparison of Methane-Stabilized He-Ne Lasers
- 1 January 1981
- journal article
- Published by IOP Publishing in Metrologia
- Vol. 17 (1) , 3-6
- https://doi.org/10.1088/0026-1394/17/1/002
Abstract
Two portable methane-stabilized lasers designed at BIPM have been compared with a type a stationary Soviet device developed in VNIIFTRI1. This comparison is one of a series aimed at establishing the coherence of laser wavelength and frequency measurements throughout the world and took place in June 1979. The VNIIFTRI and BIPM lasers using different methods of stabilization, have different optical and mechanical designs and laser tubes. The results of previous measurements, made in VNIIFTRI, of the most important frequency shifts for Soviet lasers together with a method of reproducing their frequency which leads to a precision of 1.10-12 are also presented.Keywords
This publication has 6 references indexed in Scilit:
- Methane-stabilized He-Ne laser intercomparisons 1976IEEE Transactions on Instrumentation and Measurement, 1976
- Shift of a molecular resonance peak of a helium-neon laser with a methane absorption cell due to increase in methane pressureSoviet Journal of Quantum Electronics, 1976
- Reference infrared frequency-measuring installationMeasurement Techniques, 1976
- Power shift of the frequency of an He-Ne-CH4laserSoviet Journal of Quantum Electronics, 1976
- Laser Frequency Stabilization by Means of Saturation DispersionZeitschrift für Naturforschung A, 1975
- Pressure Shift and Broadening of Methane Line at 3.39Studied by Laser-Saturated Molecular AbsorptionPhysical Review Letters, 1969