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Glan-Thompson Polarizer
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  • Glan-Thompson Polarizer

  • CASTECH offers an extensive production line of birefringent crystals for polarization applications.
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Introduction:

CASTECH offers an extensive production line of birefringent crystals for polarization applications. Our crystal polarizer family includes Glan-Taylor Polarizers, Glan-Laser Polarizers, Glan-Thompson Polarizers, Wollaston Polarizers, Rochon Polarizers and Quartz Polarization Rotators. Substrate options have α-BBO (UV), calcite (visible to Near-IR), yttrium orthovanadate (YVO4, Near-IR to Mid-IR), MgF2 (UV to Mid-IR), and crystal quartz (UV to Near-IR). Both the mounted and unmounted crystals are available. Contact us freely to select the ideal combination of construction type, substrate, coating design, angle of operation and laser damage resistance level to suit your applications.

Features:

  •  Material: Calcite, α-BBO, YVO4, MgF2 or Crystal Quartz  
  • Custom dimension and shapes  
  • Extinction ratio: 100,000:1  
  • Standard and custom coating options available  
  • High laser damage threshold

Specifications:

Material Calcite;α-BBO
Wavelength Range

Calcite: 350-2300nm                        

α-BBO: 220-900nm

Extinction Ratio 

Calcite:<5x10-5

α-BBO:<5x10-6

Surface Quality 60/40
Dimension Tolerance ±0.1mm
Damage Threshold >200MW/cm2
Beam Deviation          <3′
Wavefront Distortion <λ/4 @ 632.8nm
Coating Single Layer MgF2
Housing Black Anodized Aluminum

 

 

 

  •   Large Acceptance Angle: Special design for the ratio of  l/A (length/aperture) guarantees the wide acceptance angle. 

  •   High Polarization Purity.

  •   Suitable for low power applications.

 

Order Information:

 

 PGM --- 080 --- ABBO
   
Product Code    Clear Aperture "a"=8mm   Material

 

Glan-Thompson Polarizer:

 

Part Number   1/A  

  Wavelength Range

(nm)  

a

(mm)

D

(mm)

 L±0.1

(mm)

Material
PGM-080-CAL-2.5 2.5 350-2300 8 25.4 28   Calcite  
PGM-100-CAL-2.5 10 25.4 33 Calcite
   PGM-150-CAL-2.5    15 30 45.5 Calcite
PGM-080-CAL-3.0 3 350-2300 8 25.4 32 Calcite
PGM-100-CAL-3.0 10 25.4 38 Calcite
PGM-150-CAL-3.0 15 30 53 Calcite
PGM-080-ABBO-1.6 1.6 220-900 8 25.4 21 α-BBO
   PGM-100-ABBO-1.6    10 25.4 24.5 α-BBO
PGM-150-ABBO-1.6 15 30 32.5 α-BBO

 

Note:Custom designs for other sizes and coatings are also available  upon request.

 

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