Abstract
Knowing the polarization of a light beam is essential for BEC optical mechanics and fiber coupling.
To entrap the atoms in a MOT six beams of equal strength and polarization are required. With polarity maintaining fibers knowing the polarization for each beam prior to coupling is ideal, but with 11 beams (3 high pressure, 6 low pressure, 1 imaging, 1 cooling) having an unwieldy polarimeter is not an option.