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Stabilization of laser diodes frequency for cooling 133Cs atoms in a magneto optical trap

T. ACSENTE1,* , C. MANDACHE1

Affiliation

  1. National Institute for Laser, Plasma and Radiation Physics, P. O. Box MG-36, 76900 Bucharest, Romania

Abstract

Results regarding the stabilization of laser radiation involved in a 133Cs atoms magneto optical trap (MOT) operation are reported. The linewidth of the laser diodes was reduced using Littrow extended cavity configuration. For stabilizing the laser frequency, we used lock-in negative feedback loops. The atomic frequency references were obtained by means of saturated absorption spectroscopy. The amplification of the laser cooling power was realized by means injection locking, a master-slave optical method. We also briefly present the magneto optical trap operation..

Keywords

Laser cooling, Magneto optical trap, Optical molasses, Extended cavity laser diode, Laser diode stabilization, Injection locking, Master-slave laser diodes.

Submitted at: Nov. 14, 2006
Accepted at: June 15, 2007

Citation

T. ACSENTE, C. MANDACHE, Stabilization of laser diodes frequency for cooling 133Cs atoms in a magneto optical trap, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 6, pp. 1847-1851 (2007)