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Absolute frequency stabilisation of a 637 nm laser diode using Doppler-free I2 spectra

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4 Author(s)
Edwards, C.S. ; Div. of Mech. & Opt. Metrol., Nat. Phys. Lab., Teddington, UK ; Barwood, G.P. ; Gill, P. ; Rowley, W.R.C.

Doppler-free saturated features for two 127I2 B-X transitions have been observed in third derivative form, using an extended-cavity 637 nm laser diode. Frequency stabilisation of a visible laser diode to Doppler-free iodine features is reported for the first time. Absolute frequency measurements of the stabilised laser and a preliminary estimate of its stability are presented

Published in:

Electronics Letters  (Volume:31 ,  Issue: 10 )