Abstract
We present a novel technique to lock the frequency of the trapping laser of a magneto-optic trap (MOT) using a signal generated from the ultracold atoms in the MOT itself. This technique utilizes the large number of very cold, slow-moving atoms in the MOT to generate a signal free of Doppler-broadening. A system analogous to Pound-Drever-Hall locking allows an error signal to be generated on resonance without significantly perturbing the MOT. We have successfully stabilized the frequency of the main trapping laser of a 87Rb MOT using this technique to generate a self-locked MOT.
Original language | English |
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Pages (from-to) | 85-88 |
Number of pages | 4 |
Journal | Optics Communications |
Volume | 212 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 15 Oct 2002 |