Patent ID: 8810792

Claim:
A beam sampling system, comprising: a first beam splitter adapted to split a laser beam propagating on a beam line with a principal axis, and having a primary polarization component and a secondary polarization component, into an intermediate sample beam on an intermediate sample beam line, and a first beam splitter output beam, such that the intermediate sample beam includes a first percentage of the primary polarization component of the laser beam and a second percentage of the secondary polarization component of the laser beam; means for rotating polarization of the intermediate sample beam; and a second beam splitter matching the first beam splitter, and mounted in relation to the first beam splitter, so that the intermediate sample beam is split and provides an output sample beam on an output sample beam line, the output sample beam including substantially said first percentage of the secondary polarization component of the intermediate sample beam and substantially said second percentage of the primary polarization component of the intermediate sample beam.