Title :
Transportable He-Ne/CH/sub 4/-CO/sub 2/-laser frequency standard
Author :
Steiner, R. ; Gillespie, A. ; Fujii, K. ; Williams, E. ; Newell, D. ; Picard, A. ; Stenbakken, G. ; Olsen, P.T.
Author_Institution :
Inst. of Laser Phys., Acad. of Sci., Novosibirsk, Russia
Abstract :
A transportable laser frequency standard at 3.39 /spl mu/m and 10.2 /spl mu/m was created. The complex consisted of He-Ne/CH/sub 4/ and CO/sub 2/ lasers. The first one was stabilized on 76 transitions of the F2(2)P(7)3 methane line. The third harmonic of CO/sub 2/ laser radiation was phase locked to the He-Ne/CH/sub 4/ laser frequency. Long-term stability of 10/sup -15/ was achieved. Absolute frequency of laser standard was measured with accuracy of 10/sup -13/.
Keywords :
carbon compounds; frequency measurement; gas lasers; helium; laser frequency stability; measurement standards; neon; optical phase locked loops; 10.2 micron; 3.39 micron; CO/sub 2/; He-Ne; He-Ne/CH/sub 4/-CO/sub 2/-laser frequency standard; absolute frequency; frequency reproducibility; long-term stability; methane line; phase locked; recoil-doublet line; third harmonic; transportable laser frequency standard; Force measurement; Interferometers; Magnetic field measurement; Monitoring; NIST; Optical interferometry; Optical refraction; Superconducting coils; Velocity measurement; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.546529
