Properties and stabilisation of a short-resonator 543 nm HeNe laser

Abstract We report on the investigations of polarisation behaviour of a short-resonator internal-mirror 543 nm HeNe laser under axial and transversal magnetic field. An angular dependence of the polarisation properties on the orientation of the transversal field and Zeeman splitting under axial field is reported. The laser was then stabilised on the equilibrium of output powers in two orthogonally polarised modes and a stability within the range 3 × 10 −9 was achieved.