Glan-Thompson Polarizers

Glan-Thompson Polarizers
Glan-Thompson Polarizers Glan-Thompson Polarizers

Materials: alpha-BBO or Calcite single crystal. 
Optically cemented structure.
length/aperture ratio for wide acceptance angle.
High extinction ratio (>100,000:1) over a large wavelength range. 
Minimal beam displacement and angular deviation for
  the transmitted beam.
Suitable for low power applications.

Housing OD: 1" (25.4 mm) or 30 mm. OD 2" available upon request.  

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Part No. Description Material Aperture Price Availability Add to Cart

Glan-Thompson Polarizer Specifications:

Wavelength Range:     220-900 nm (α-BBO)
     400-2300 nm (Calcite)
Surface Quality:         20-10 scratch and dig
Wavefront Distortion:  <
λ/4 @632.8 nm
Dimensions Tolerance: +/- 0.1 mm
Beam Deviation:         < 3 arc minutes
Coatings:                  Single layer MgF2 on input/output surfaces
                               (Multilayer AR coating available upon request)
Housing:                   Black anodized aluminum

Standard Product Parameters:

Part No. Material

Length/ Aperture


Field (o)

Aperture with Mount φ(mm)

 D (mm)
GSB0108 α-BBO 1.8 200,000:1 


8 25.4
GSB0110 10 25.4
GSB0115 15 30.0
GSC0108 Calcite 3.0 100,000:1 >25 8 25.4
GSC0110 10 25.4
GSC0112 12.7 25.4

a-BBO: Single layer MgF2 on input/output surfaces
Calcite: Single layer MgF2 on input/output surfaces

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


Typical transmission curve for GSC (calcite):












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