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Laser diode frequency stabilisation to Doppler-free rubidium spectra

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3 Author(s)
Barwood, G.P. ; Div. of Mech. & Opt. Metrol., NPL, Teddington, UK ; Gill, P. ; Rowley, W.R.C.

Doppler-free saturated features at both Rb D-lines have been observed in third-derivative form using a simple laser diode. These are suitable for stabilising the laser frequency. The letter reports, for the first time, locking of a diode frequency to third-derivative Doppler-free features at 795 nm. The day-to-day reproducibility was approximately 400 kHz.<>

Published in:

Electronics Letters  (Volume:24 ,  Issue: 13 )