MIRROR

摘要

There is described a mirror (3) comprising a coating (4) that creates a polarization dependent reflectivity of the mirror (3) so that the mirror (3) predominantly reflects light of a pre-determined polarization state. The mirror (3) can be advantageously used in a laser (1) comprising a laser cavity (2) thereby enabling the laser (1) to operate stably in the pre-determined polarization state.