Brewster Window HeNe Lasers
Some HeNe lasers do not use internal mirrors but instead use a single Brewster window. When mounted at a special angle (known as the Brewster angle) the window linearly polarizes the energy, eliminating the need for the radiation to be continuously reflected within the laser. The use of a Brewster window results in an extremely efficient laser due to the fact that all radiation is essentially emitted as an output beam.
With only a few choices in the world for high quality, Brewster Window HeNe lasers, and even fewer producing high-q devices, we can consistently deliver unmatched performance and quality.