https://doi.org/10.1007/s100530050571
Generation of phase-coherent laser beams for Raman spectroscopy and cooling by direct current modulation of a diode laser
Laboratoire de Physique des Lasers, Atomes et
Molécules (UMR 8523 du CNRS) ,
Centre d'Études et de Recherches Lasers et Applications,
Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex,
France
Received:
9
November
1998
Revised:
16
February
1999
Published online: 15 October 1999
A setup for generation of GHz side-bands by direct current modulation of a diode laser is described. The first order side-bands are used to inject two slave power diode lasers, in order to produce phase coherent, controllable frequency shifted, light beams, the mutual phase coherence of which has been verified (beat-note FWHM of 1 Hz, instrumentally limited). Some possible applications in the context of laser Raman cooling of cesium atoms are briefly discussed.
PACS: 42.55.Px – Semiconductor lasers; laser diodes / 32.80.Pj – Optical cooling of atoms; trapping
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999
