Abstract: A hybrid mirror for reflecting high power optical beams comprises a reaction sintered silicon carbide substrate to which is bonded a plurality of silicon faceplates containing a plurality of coolant passages.

Abstract: A hybrid mirror for reflecting high power optical beams comprises a reaction sintered silicon carbide substrate to which is bonded a plurality of silicon faceplates containing a plurality of coolant passages.

Abstract: A positionally adjustable mirror is supported by an annular flat diaphragm completely encircling the mirror. High stiffness is achieved in the torsional and transverse modes. Low stiffness is achieved in the axial direction without local high stress levels being imposed on the mirror.

Abstract: A laser mirror is described having a base section, a backing section, and a laser radiation reflecting surface. The base section and backing section are formed of graphite fiber reinforced glass. The fibers in the base section are oriented in a plane parallel to the laser radiation reflecting surface. The fibers in the backing section are oriented in a plane perpendicular to the radii of the reflecting surface. Based on the materials employed and the orientation of the fibers, a laser mirror with improved thermal distortion properties results.

Abstract: A pressure balancing fluid transfer manifold for use with fluid cooled laser mirrors is disclosed. The manifold is adapted for connection to the inlet and outlet ports of a fluid cooled laser mirror and includes an interface fitting adapted for being fixedly connected to a mounting plate which supports the laser mirror and a housing fixedly attached to the mirror wherein the interface fitting is sealably engaged within the housing with O-ring type seals. Elongated slots within the walls of the fitting are adapted for passing coolant from the fitting to the mirror coolant distribution system. Hydraulic pressures within the fitting are decoupled from the mirrors by a vented cavity located between the end of the fitting and the mirror and the pressure forces are transmitted through the fitting to the mounting plate thereby minimizing distortion of the mirror resulting from unbalanced pressure forces. In one embodiment the interface fitting is coupled directly to the coolant distribution system within the mirror.