Specifications

  • Material
    UV Grade Fused Silica
  • Angle of Incidence
    45°
  • Orientation
    Beam should enter surface marked with an arrow
  • Wavefront Distortion
    λ/10 at 632.8 nm over the clear aperture
  • Surface Flatness
    λ/10 at 632.8 nm over the clear aperture
  • Surface Quality
    40-20 scratch-dig
  • Diameter Tolerance
    +0/-0.25 mm
  • Thickness
    3.0 mm
  • Thickness Tolerance
    ±0.25 mm
  • Wedge
    ≤1 arc min
  • Clear Aperture
    > central 80% of diameter
  • Chamfers
    0.5 mm face width
  • Chamfers Angle Tolerance
    45±15°
  • Cleaning
    See How to Clean Optics

Features

Thin UV Fused Silica Substrate

Our ultrashort pulse beamsplitters are designed to minimize pulse dispersion and maximize bandwidth for beam sampling and autocorrelation measurements of ultrafast laser pulses. A thin UV grade fused silica substrate with specially designed coating and λ/10 wavefront distortion yields minimized GDD upon reflection and transmission.

S-Polarized Beamsplitters

The UB.2 beamsplitters are used to evenly divide S polarized light at 45° angle of incidence from 700–950 nm, ideal for output from the Spectra Physics Tsunami® Ultrafast lasers. The back surface has an antireflection coating to minimize surface reflection losses and eliminate ghost images. 

P-Polarized Beamsplitters

The UB.4 beamsplitters are used to evenly split the P polarized light at 45° angle of incidence from 680-1080 nm, ideal for Spectra Physics ultrafast amplifiers and oscillators such as Solstice®, Spitfire®, or Mai Tai®. The back surface is uncoated.

Resources

CompareModelDrawings, CAD & Specs Diameter Wavelength Range Coating Code Polarization Surface Quality Availability Price
mgctlbxN$MZP mgctlbxV$5.3.2 mgctlbxL$C