Title :
Intercomparison of two iodine-stabilized He-Ne lasers at /spl lambda/=543 nm
Author :
Simonsen, H.R. ; Brand, U. ; Riehle, F.
Author_Institution :
Inst. of Fundamental Metrol., Lyngby, Denmark
fDate :
June 27 1994-July 1 1994
Abstract :
An intercomparison of two /sup 127/I/sub 2/ stabilized 543 nm He-Ne lasers, recommended as length standards, has been made between DFM and PTB, and is the first international comparison of this kind of lasers reported so far. Both lasers use saturated absorption of iodine in an external cell, the one (PTB) using FM-spectroscopy, the other (DFM) the usual 3f-modulation technique.<>
Keywords :
frequency measurement; gas lasers; helium; iodine; laser frequency stability; measurement standards; modulation spectroscopy; neon; optical modulation; /sup 127/I/sub 2/ stabilized He-Ne lasers; 3f-modulation; 543 nm; DFM; FM-spectroscopy; He-Ne; He-Ne-I/sub 2/; I/sub 2/; PTB; external cell; frequency standards; international comparison; saturated absorption; Absorption; Frequency estimation; Frequency measurement; Laser stability; Laser transitions; Optical saturation; Optical sensors; Pump lasers; Reproducibility of results; Stimulated emission;
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.1994.333402
