+55 11 2839-3209

Nd:YAG Laser Rear Mirrors

Laser rear mirrors with hard dielectric coatings for pulsed and CW high power fundamental Nd:YAG laser applications. High reflectivity (R>99.7%) coatings are applied on laser rear mirrors. The UVFS substrates are suggested for pulsed and CW high power fundamental Nd:YAG laser application.

 

Material
UV grade fused silica or BK7 glass
S1 Surface Flatness
λ/10 at 633 nm
S1 Surface Quality
20-10 scratch & dig (MIL-PRF-13830B)
S2 Surface Quality
Commercial polish
Diameter Ø 25.4x6mm
Diameter Tolerance
+0.00 mm-0.12 mm
Thickness Tolerance
±0.25
Chamfer
0.3 mm at 45° typical

 

Coating
Technology
Electron beam multilayer dielectric
Adhesion and Durability
Per MIL-C-675A. Insoluble in lab solvents
Clear Aperture
Exceeds central 85% of diameter
Damage Threshold
5 J/cm2, 8 nsec pulse, 1064nm typical for BK7 substrates
8 J/cm2, 8 nsec pulse, 1064nm typical for UVFS substrates
Angle of Incidence
0°-8° (normal)
Reflectivity R>99.7%