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Broadband Low GDD Ultrafast Mirrors 720-880 nm

High reflectivity and low group delay dispersion in broad region centered at 800 nm

  • Hard dielectric High Reflection or Ion Beam Sputtering coating
  • Laser Damage Threshold >50 mJ/cm2, 50 fsec pulse, 800 nm typical

 

EKSMA Optics offers broadband low GDD ultrafast laser mirrors are coated @ 720-880 nm. These ultrafast mirrors are designed to be used with 1st harmonic of Ti:Sapphire laser.

 

Standard mirrors feature high reflectivity (> 99 %), and even higher reflectivity (> 99.8 %) is specified for 082-7288HHR items (UV FS, Ø25.4 x 6 mm).

 

SPECIFICATIONS:

Coating
Hard dielectric High Reflection or Ion Beam Sputtering
Angle of Incidence
0 or 45±3°
Designed for Average Polarization
R=(Rs+Rp)/2
Laser Damage Threshold >50 mJ/cm2, 50 fsec, 800 nm typical

 

SUBSTRATE:

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 Tolerance
+0.00 mm-0.12 mm
Thickness Tolerance
±0.25
Wedge
<3 min
Chamfer
0.3 mm at 45° typical