Feedback Isolators perform the same function as a polarizer in that they also convert a linear polarized beam into a circular polarized beam. In addition, they include an isolator optic which will absorb light that may be reflected off the material back into the optical system. This serves to protect the laser resonator from potentially serious damage by this back reflection. The feedback isolator is typically mounted to the front of the laser, although it can also be located further along in the beam path. Water-cooling provisions are made to accommodate higher power lasers. Laser Mechanisms’ Feedback Isolators may be constructed from a combination of standard beam benders or from a combination of specialized mounting plates designed to match the particular polarization vector of certain popular laser models.
