Title :
Preliminary absolute frequency measurement of a diode laser locked to a two-photon hyperfine transition of rubidium at 385 THz
Author :
Touahri, D. ; Acef, O. ; Hilico, L. ; Nez, F. ; Clairon, A. ; Zondy, J.-J.
Author_Institution :
Lab. Primaire du Temps et des Frequences, Obs. de Paris, France
Abstract :
We have performed a first preliminary measurement of the absolute frequency (v=385.285 THz, /spl lambda/=778.1 nm) of a diode laser frequency-stabilized to the (F/sub 8/=3, F/sub e/=5) hyperfine component of the 58/sub 1/2 /-5D/sub 5/2/ two-photon absorption of /sup 85/Rb, using a frequency chain which synthesizes the 13th harmonic of our laboratory CO/sub 2//OsO/sub 4/ frequency standard at 29 THz.
Keywords :
atomic clocks; frequency measurement; hyperfine structure; laser frequency stability; laser variables measurement; measurement standards; optical pumping; rubidium; semiconductor lasers; two-photon processes; /sup 85/Rb atom; 385 THz; 58/sub 1/2 /-5D/sub 5/2/ two-photon absorption; 778.1 nm; Rb; SNR; absolute frequency measurement; frequency chain; frequency locked LD; frequency-stabilized LD; harmonic synthesis; laboratory CO/sub 2//OsO/sub 4/ frequency standard; transportable optical standard; two-photon hyperfine transition; uncertainty; Absorption; Diode lasers; Frequency measurement; Frequency synthesizers; Laboratories; Measurement standards; Optical mixing; Schottky diodes; Solid lasers; Virtual reality;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547089
