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Glan-Thompson Beam Splitters

Glan-Thompson Beam Splitters
Glan-Thompson Beam Splitters Glan-Thompson Beam Splitters Glan-Thompson Beam Splitters

 Materials: Calcite or alpha-BBO single crystal. 
 Optically cemented structure.
s-pol beam transmits while p-pol light
deflects and exits through a side face.
 High extinction ratio (> 100,000:1) over a large wavelength range.

Both output beams are at normal incident on the corresponding output face.
 Large splitting angle between the two orthogonally polarized beams:
 45
o for Calcite, 61o for α-BBO.
 Suitable for low and medium power applications.
Housing OD: 1" (25.4mm) or 2" (50.8mm).

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Specifications:
 

Wavelength Range:     400-2300nm (Calcite)
                               210-900nm (
α-BBO)
Surface Quality:         20-10 scratch and dig
Wavefront Distortion:  <
  λ/4 @632.8nm
Dimensions Tolerance: +/- 0.1 mm
Beam Deviation:         < 3 arc minutes
Housing:                   Black anodized aluminum

 


Coatings:  
                  
a-BBO: Single layer MgF2 protective coating (P-coating) on input/output surfaces
Calcite: Single layer MgF2 protective coating (P-coating) on input/output surfaces


Multilayer AR coatings at the specified wavelengths or wavelength ranges are available upon request.


Typical transmission curve for GPC (calcite):

 

 

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