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Article Dans Une Revue IEEE Journal of Quantum Electronics Année : 1997

CO2 laser stabilization to 0.1-Hz level using external electrooptic modulation

Résumé

We have developed a frequency stabilization scheme for CO/sub 2/ lasers using only external modulation via an electrooptic modulator (EOM). One of the two laser sidebands which are generated by the EOM and frequency-modulated is set in resonance with a Fabry-Perot cavity, itself filled with OsO/sub 4/ as an absorber. The saturation signal of an OsO/sub 4/ line detected in transmission of the Fabry-Perot cavity is used for stabilization. We obtained a stability of 0.1 Hz (/spl Delta//spl nu///spl nu/=3.5 10/sup -15/) on a 100-s time scale, and a reproducibility up to 10 Hz with the strongest OsO/sub 4/ reference lines. These results largely improve the performance of our previous setup for which modulation was applied through piezoelectric transducers. Further, the stabilized laser is not frequency-modulated and is easily tunable.
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Dates et versions

hal-04318871 , version 1 (01-12-2023)

Identifiants

Citer

V. Bernard, Christophe Daussy, G. Nogues, L. Constantin, P.E. Durand, et al.. CO2 laser stabilization to 0.1-Hz level using external electrooptic modulation. IEEE Journal of Quantum Electronics, 1997, 33 (8), pp.1282-1287. ⟨10.1109/3.605548⟩. ⟨hal-04318871⟩
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