[Laser] ~OT: High-power polarized light?

[Tom Becker]

 > ... Reflection of such a beam on nonmetallic surfaces produces 
partially up to totally linear polarized light...

Hmmm.  If a beam is fired through a pair of narrowly-spaced parallel 
reflectors such that several grazing reflections occur before the beam 
emerges, is the beam likely to be well linearly-polarized?

Has variable polarization been used as a modulation mode?


Tom