Stackable Beam Splitters

Wedge Beam Splitters

These wedge beam splitters are made of UV grade fused silica for use from 190 to 2000nm.
Since they do not absorb light, they have a much higher power handling capacity than the neutral density glass attenuator/filters.
All of our beam splitters are wedge type so that there is no spurious image projected into the camera.
In most cases, the user has to arrange for a beam stop for the transmitted and rear reflected beams.

Description
Specifications
Ordering Info
Catalog/Manual
Download Data Sheet.
The stackable beam splitters are designed for maximum modularity and shortest beam path. They are compatible with almost all of our cameras having the standard C mount thread and can mount either to other attenuators or to the camera itself. Each beam splitter reflects ≤6% of the incoming beam and allows approximately ≥94% of the beam to pass directly through. By stacking 2 splitters ≤6% of ≤6% or 0.36% of the original beam intensity is directed into the camera. The beam splitters are mounted over the fixed or variable attenuators with a simple fastening ring and can be oriented in any direction with the beam coming from right, left, up, down, or front. The Beam Splitters will operate for wavelengths from 193nm - 2500nm. Damage threshold is >5J/cm2 for 10ns pulses.

An optional Ø30mm clear aperture splitter allows for larger diameter incoming beams. Caution: Beam convergence and power density must be known at the imager so you don’t overflow the imager size and maximum power density at the imager.

A different set of stackable beam splitters are specifically coated for optimization at 1064nm. Each beam splitter reduces the intensity to 1% of the input Beam. 2 stacked splitters will produce a sampling Beam with 0.01% intensity of the original beam.

The wedge angle of 10 degrees insures that only the reflection from the front surface will appear on the camera with no double images. The user must insure that there are beam stops for the transmitted and reflected beams.

Note that if possible, the user should use an even number of beam splitters so as to cancel any possible polarization effects.
Aperture Path length to CCD 1 beam splitter 2 beam splitters
15mm1   60mm 93mm
Note 1: For converging beams a larger aperture 1st beam splitter is available P/N SPZ17025. In that case, the aperture at the 1st beam splitter is 30mm
      Item Description Clear Aperture Material Wavelength Reflectance Path length to CCD
with 3 screw-on ND filters
P/N  
     
  1st Wedge Beam Splitter 45 degree wedged beam splitter Ø15mm UVFS 193-2500nm ≤6% 60mm SPZ17015  
                 
  2nd Wedge Beam Splitter Additional 45 degree wedged beam splitter to mount to 1st wedge beam splitter   UVFS 193-2500nm ≤6% 93mm SPZ17026  
                 
  Large aperature1st Wedge Beam Splitter For converging beams a larger aperture 1st wedge beam splitter Ø30mm UVFS 193-2500nm ≤6% 60mm SPZ17025  
                 
  1st Wedge Beam Splitter 45 degree wedged beam splitter Ø15mm UVFS coated 1064nm 1064nm ≤1% 60mm SPZ17031  
                 
  2nd Wedge Beam Splitter Additional 45 degree wedged beam splitter to mount to 1st wedge beam splitter   UVFS coated 1064nm 1064nm ≤1% 93mm SPZ17032  
  Beam Profilers Beam Profilers Catalog
133 pages (8.23 MB)
  Wedge User Notes Wedge User Notes
4 pages (353 KB )