Frequency beats between orthogonal polarizations in a water-vapor laser
Zav'yalov V.V., Bogomolov G.D.
Generation of two orthogonal linear polarizations belonging to the same resonator mode and differing in frequency by several dozen kHz was observed in a water-vapor laser whose beam was extracted through a thin grid. It is shown that the difference between the frequencies is due to anisotropy of the grid.