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Glan-Laser Polarizers

A Glan–Laser prism is made of two birefringent wedges which are separated on their long surfaces with an air gap. By arranging optical axes parallel to the plane of entrance, total internal reflection of s-polarized light at the air-gap ensures that only p-polarized light is transmitted by the device. Because the incident angle at the gap can be reasonably close to Brewster's angle, a considerable increase in transmission is obtained. The Glan–Laser prism has two escape windows and it is suitable for high power applications.

You may refer to this page (http://www.pmoptics.com/crystals.html) for material properties.

 

Features: 

  • High Polarization Purity
  • High Damage Threshold
  • High Transmittance
  • Wide wavelength Range
  • Air-Spaced with two escape windows for high power applications
  • Cutting angle close to Brewster's angle
  • e-ray passing through with little deviation

Specification: 

Materials Alpha-BBO (190~3500nm) or Calcite (350~2300nm)
Dimensional Tolerance ± 0.1mm
Extinction Ratio Alpha-BBO < 1×10-6 ,  Calcite < 5×10-5
Damage Threshold >1GW/cm^2 at 1064nm for Alpha-BBO
Transmittance Tp > 95%
Flatness λ/4 @ 632.8nm
Surface Quality 20 ~ 10
Beam Deviation < 3 arc minutes
AR coating Single Layer MgF2 on input and output surfaces
Mount Black Anodized Aluminum

 

Alpha-BBO Glan Laser polarizer in stock, clear aperture:10mm, length:25.4mm, PGLP-04302 ($925): 

 
 

 
This Glan Laser Polarizer has a single layer AR coating on both input and output surfaces from 700 to 3000nm. It has high damage threshold and high extinction ratio. Contact us for quantity pricing.

 

Ordering Information:

    P    G
  L
  P

   
  X 
     
           

A

 

B

 

C

 
     

A

 Wavelength

01 = 200 ~ 270 nm for Alpha-BBO  
 02 = 270 ~ 400 nm for Alpha-BBO  
 03 = 400 ~ 700 nm for Alpha-BBO  
 04 = 700 ~ 3000 nm for Alpha-BBO  
 05 = 350 ~ 2300 nm for Calcite  
 00 = Special  
 

B

 Material

 2 = Calcite
 
   3 = Alpha-BBO
 
   0 = Special  
 

C

 Dimensions

 01 = 8.0mm(φ1)X25.4mm(φ2)X24.7mm(L)  
   Check Standard Size Table Below  
   00 = Custom Dimensions  

 

Standard Size Table (See the figure above):  

  Dimensions P/N
Clear Aperture Φ1 (mm)
Outside Diameter Φ2 (mm) Length (L:mm) Wavelength Range λ (nm) Material
  01
8.0
 25.4  24.7 700 ~ 3000
 Alpha-BBO
   02
 10.0
 25.4 25.9
  03
15.0
 30.0  33.0
  04
20.0
 38.0  43.6
  05
8.0
 25.4  25.0 400 ~700
   06
 10.0
 25.4 26.0
  07
15.0
 30.0  33.4
  08
20.0
 38.0  41.7
  09
8.0
 25.4  24.5  350 ~ 2300
 Calcite
  10
 10.0
 25.4 26.2
  11
15.0
 30.0  33.3

 

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