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Arminas Butkus +370 5 219 4884
Glan-type polarizers
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Glan-type polarizers

Main features

 

  • Material: α-BBO, calcite and YVO4
  • High extinction ratio over a wide wavelength range (200 nm to 4000 nm)
  • Air-spaced configuration
  • Minor transmitted beam displacement and deviation
  • Single layer MgF2 coating for broadband use

 

Application examples

 

  • Optical isolation
  • Polarization cleaning
  • Laser power attenuation
Request custom
  • Description
  • Specifications

Glan-type polarizers are based on birefringence phenomena in transparent crystalline material. Therefore, they are sometimes called as birefringence polarizers. These polarizers consists of two right-angle prisms separated by an air-gap to eliminate the adhesive and reduce laser damage. The angle of a boundary between the crystalline material and an air-gap is chosen so that the total internal reflection (TIR) for the ordinary wave occurs. The optical axes of prisms are aligned parallel to the plane of reflection of an ordinary wave. The reflected wave is absorbed in the housing, if it is Glan-Taylor polarizer, while the side surface of the Glan-laser polarizer material is polished and the housing has holes in order to allow the reflected beam to exit. Therefore, Glan-laser type polarizers are suitable for high-power applications. The reflected beam is partially polarized, therefore it cannot be used for polarization sensitive applications, while the transmitted beam has high extinction ratio for both Glan-Taylor and Glan-Laser polarizers. The drawback of Glan-type polarizers is that their acceptance angle is relatively low 6-7°.

4Lasers offer Glan-taylor and Glan-laser type polarizers made from alpha-BBO (UV), calcite (VIS to NIR) and YVO4 (VIS to MIR) in black anodized aluminium mount. In order to optimize broadband transmission ratio single layer MgF2 coatings are applied onto the Glan-laser polarizer optical surfaces.

Coming soon

Order your item
Material Type Clear aperture Mount diameter Mount length Angular field Wavelength range SKU price quantity
a-BBO
Glan-Taylor
6 mm
⌀15 mm
29 mm
>6°
200-300 nm
7407
Request
a-BBO
Glan-Taylor
8 mm
⌀25,4 mm
31 mm
>6°
200-300 nm
7408
Request
a-BBO
Glan-Taylor
10 mm
⌀25,4 mm
31 mm
>6°
200-300 nm
7409
Request
a-BBO
Glan-Taylor
6 mm
⌀15 mm
25 mm
>6°
300-700 nm
7410
Request
a-BBO
Glan-Taylor
8 mm
⌀25,4 mm
25 mm
>6°
300-700 nm
7411
Request
a-BBO
Glan-Taylor
10 mm
⌀25,4 mm
26 mm
>6°
300-700 nm
7412
Request
Calcite
Glan-Taylor
6 mm
⌀15 mm
21 mm
>7°
350-2300 nm
7413
Request
Calcite
Glan-Taylor
8 mm
⌀25,4 mm
25 mm
>7°
350-2300 nm
7414
Request
Calcite
Glan-Taylor
10 mm
⌀25,4 mm
26 mm
>7°
350-2300 nm
7415
Request
YVO4
Glan-Taylor
6 mm
⌀15 mm
16 mm
>6°
500-4000 nm
7416
Request
YVO4
Glan-Taylor
8 mm
⌀25,4 mm
19 mm
>6°
500-4000 nm
7417
Request
YVO4
Glan-Taylor
10 mm
⌀25,4 mm
22 mm
>6°
500-4000 nm
7418
Request
a-BBO
Glan-Laser
6 mm
⌀15 mm
29 mm
>6°
200-300 nm
7419
Request
a-BBO
Glan-Laser
8 mm
⌀25,4 mm
31 mm
>6°
200-300 nm
7420
Request
a-BBO
Glan-Laser
10 mm
⌀25,4 mm
31 mm
>6°
200-300 nm
7421
Request
a-BBO
Glan-Laser
6 mm
⌀15 mm
25 mm
>6°
300-700 nm
7422
Request
a-BBO
Glan-Laser
8 mm
⌀25,4 mm
25 mm
>6°
300-700 nm
7423
Request
a-BBO
Glan-Laser
10 mm
⌀25,4 mm
26 mm
>6°
300-700 nm
7424
Request
Calcite
Glan-Laser
6 mm
⌀15 mm
21 mm
>7°
350-2300 nm
7425
Request
Calcite
Glan-Laser
8 mm
⌀25,4 mm
25 mm
>7°
350-2300 nm
7426
Request