Title :
Accuracy of the computer controlled laser frequency standards based on resolved hyperfine structure of a methane line
Author :
Tyurikov, D.A. ; Gubin, M.A. ; Shelkovnikov, A.S. ; Kovalchuk, E.V.
Author_Institution :
Lebedev (P.N.) Phys. Inst., Moscow, Russia
fDate :
June 27 1994-July 1 1994
Abstract :
We present 2-years results of frequency comparisons of the transportable He-Ne laser standards at 3.99 /spl mu/m stabilized to components of magnetic hyperfine structure (MHFS) of F/sub 2//sup (2/)-line of methane, and stationary laser using resolved recoil doublet. Absolute frequency measurements of the transportable laser have been made and this value was transferred to the stationary one. On the basis of theoretical model of the line shape the frequency of unperturbed transition have been calculated.<>
Keywords :
computerised control; frequency measurement; gas lasers; helium; laser frequency stability; measurement standards; molecular hyperfine structure; molecular spectral line breadth; neon; organic compounds; physical instrumentation control; 3.39 mum; He-Ne; He-Ne laser standards; absolute frequency measurements; computer controlled laser frequency standards; line shape; magnetic hyperfine structure; methane line; resolved hyperfine structure; resolved recoil doublet; stationary laser; theoretical model; transportable standards; unperturbed transition; Absorption; Helium; Laser modes; Laser noise; Laser theory; Laser transitions; Optical control; Resonance; Resonant frequency; Shape measurement;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333382
