|Download Optics for Nd: YAG Lasers Datasheet (PDF, 172 KB)|
Beamsplitters are plate windows coated with a dielectric coating to separate laser light into your choice of reflection/transmission split ratio. Beamsplitters exhibit almost no absorption and are designed specifically for 45 deg. at the wavelength and polarization being used. Standard substrates have an anti-reflection coating on the second surface.
|Substrate material:||KU-1, K8|
|Surface figure @ 633nm:||l/10|
|Surface quality, scr/dig:||20/10|
|Clear aperture:||exceeds central 85% of dimension|
|Dimensional tolerance, mm:||+0/–0.25|
|Thickness tolerance, mm:||±0.25|
|Coating:||dielectric; user specified|
|Damage threshold, J/cm2:||2-5, depending on coating spec.|
Here is an example of the beamsplitter coating:
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