Type-I Bbo Crysta , Type-Ii Bbo Crystal , Input Mirror Cavitymirror , Output, Partially Reflective Mirror Cavity Mirror ,Pump Routing Mirror , Half Waveplate , Cube Polarizer, Glan-Laser Polarizer , Residual Pump Beam Reflector , Ar Coatedplano-Convex Cylindrical Lenses F 100 Mm , Ar Coatedplano-Convex Cylindrical Lenses F 50 Mm , Ar Coatedplano-Convex Spherical Lenses, F 500 Mm , 2X Uvfs High-Power Beam Expander , 3X Uvfs High-Power Beamexpander Quantity: 57