Photonchina’s Glan-Thompson Polarizer is made of two cemented calcite (or a-BBO) prisms that are at the highest optical level. When the unpolarized light enters Glan-Thmopson Polarizer, it will separate at the intersection of the two calcite crystals. S-polarized light (e-ray) then goes on and P-polarized light (o-ray) will be reflected.

 

Function of Glan Thompson Polarizer

 

Thanks to the large field of view, the polarizer is ideal for highly converging or diverging beams. They provide high polarization and great transmission in the two emerging beams which are useful if it is required to utilize both linear polarization states.  

 

Features of Photonchina’s Glan-Thompson Polarizer

 

Wide field of view

 

High extinction ratio

 

Both coated and uncoated types are available: 

350-2300 nm for uncoated;  350-700nm or 650-1050nm for AR coated

 

You may choose from calcite or a-BBO crystal



Both mounted and unmounted are provided by Photonchina  

 

Specifications of Photonchina’s Glan-Thompson Polarizer

 

 

Material: a-BBO, Calcite

Wavelength Range: a-BBO: 200～3500 nm, Calcite: 350～2300 nm

Extinction Ratio: a-BBO:<5x10-6 , Calcite:<5x10-5

Surface Quality: 20 / 10

Parallelism: <1 arc Min

Beam Deviation: < 3 arc minutes

Wavefront Distortion: λ /4@633nm

Damage Threshold: >200 MW/cm2

Coating: Single MgF2

Mount: Black Anodized Aluminium

 

 

HIGH TRANSMSSION POLARIZER

High Transmission Glan Laser Polarizers is a special type of Glan Laser Polarizers. Its incidence angle is brewster angle cut which can greatly improve the transmission ray up to 98% in a wide range of wavelength without coating. The polarizer can be made from Calcite or YVO4 crystals. In order to get transmission of a wide range of wavelength, the polarizers are not recommended to use for large acceptance angle. It is typically used at the angle within+/-5®.

 

Photonchina Specifications：

 Material: Calcite or YVO 4

Wavelength Range: Calcite:350～2300 nm,  YVO4:500～4000 nm

 Extinction Ratio: Calcite:<5x10-5 ; YVO 4 :<5x10-6

 Surface Quality: 20 / 10

Beam Deviation: < 3 arc minutes

Wavefront Distortion: λ /4@633nm

 Damage Threshold: >500 MW/cm2

 Coating: uncoated

 Mount: Black Anodized Aluminium