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 high power laser mirror is described with minimized heat distortion. The mirror contains a multiplate heat exchanger with a criss-cross channel cooling pattern which significantly increases heat transfer coefficient of the mirror. Mirrors according to the present invention have heat transfer coefficients of up to 40,000.

Abstract: A laser nozzle, optical cavity walls, and combustion manifold system is formed having a plurality of laser nozzle members formed having two elongated projections on each side thereof, a forward projection and a rearward projection, and when said members are placed together, the rearward projections meet to form a solid wall while said forward projections are spaced to form an elongated nozzle. Side plates enclose the ends of the nozzle members and end plates cover the ends of the side plates and exposed surface of the end nozzle members. A cavity is formed between each pair of meeting rearward projections and spaced forward projections of adjacent nozzle members. A hot gas flow distributor liner is placed in each cavity through an opening in one side wall. The liner has a plate at one end which mates with a recess in the outer surface of the side wall. An opening in said plate is connected to the inside of said liner.