Patent ID: 7768705
Filing Date: 2010-08-03
Classification: G01R,H01S

Abstract:
1. An optical irradiation device for polarizing alkali atoms, comprising: at least one semiconductor laser device configured to generate laser light that is suitable, with respect to a wavelength thereof, for polarizing alkali atoms; a polarizer for circular polarization of the laser light generated by said at least one semiconductor laser device; means for introducing the laser light into a working area configured to hold therein the alkali atoms to be polarized; means for defining the wavelength of the laser light and for coupling back a portion of the laser light into the semiconductor laser device for defining the wavelength of the laser light at a predetermined wavelength or a predetermined wavelength range; and a homogenizer that homogenizes the laser light, the homogenizer being disposed downstream in the propagation direction of the laser light from said means for defining the wavelength.