The effect of a weak axial magnetic field on a He-Cd laser


By experimenting on a He-Cd laser in a weak axial magnetic field (WAMF), some new phenomena was observed. the polarization characteristics of the laser beam varied, the main polarization axis of the laser beam rotated and the laser out¬put was modulated with the strength of the WAMF varied. Calculations according to Lamb's theory are in good agreement with experimental results obtained .