End Mirrors

End Mirror

The output coupler usually has reflectance in the range 40% to 70%. In order to optimize power and spatial profile of the laser beam, the output coupler and rear mirror have optical surfaces with well-defined radii of curvature. The output coupler is typically composed of ZnSe in order to minimize absorption and thermal distortion while transmitting a high-power laser beam. The end mirror usually has reflectance 99.5% which means that the transmitted laser beam has low power. However, because absorption in the coating is higher than in the output coupler, substrate materials, such as Germanium or Gallium Arsenide, with high thermal conductivity are used in most lasers.

CO2 Optics Catalog
 Print Version
  
 Optic TypeOphir P/NDiameterEdge ThicknessReflection S1Surface Radius
InchmmInchmm
 Open specEnd Mirror Ge613821"25.40.236"60.996S1: 15MCC ; S2: Plano
 Open specEnd Mirror Ge614361"25.40.236"60.995S1: 15MCC ; S2: Plano
 Open specEnd Mirror Ge631341-1171.1"27.940.22"5.590.995S1: 15MCC ; S2: 0.6MCX
 Open specEnd Mirror Ge614061.1"27.940.22"5.590.996S1: 10MCC ; S2: Plano
 Open specEnd Mirror Ge614071.1"27.940.22"5.590.996S1: 20MCC ; S2: Plano
 Open specEnd Mirror Ge619931.1"27.940.22"5.590.995S1: 10MCC ; S2: 0.602MCX
 Open specEnd Mirror Ge630916-1171.181"29.990.236"60.996S1: 30MCC ; S2: Plano
 Open specEnd Mirror Ge631104-1171.5"38.10.314"80.997S1: 51.6MCC ; S2: Plano
 Open specEnd Mirror Ge615431.5"38.10.314"80.995S1: 15MCC ; S2: Plano
 Open specEnd Mirror Ge615441.5"38.10.314"80.995S1: 35MCC ; S2: Plano

 Print Version