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Narrow Band Beamsplitter Plate

Product Description: 

A beamsplitter plate has a partially transmitting coating on one surface and an antireflection coating on the second surface. When the angle of incidence (AOI) is 45 degrees, it separates a beam into two orthogonal beams. The ratio of the power between two beams is determined by the coating. It is stated for unpolarized light. A nonpolarizing plate beamsplitter, tailored for a specific wavelength, can ensure the appropriate performance.

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

 

Specification: 

Materials BK7
Dimensional Tolerance ± 0.1mm
Flatness λ/4 @ 632.8nm
Surface Quality 40 ~ 20
Clear Aperture 90%
T/R 50/50±5%, 30/70±5% or Custom splitting Ratio
Polarization Difference < 5%
AR coating   AR coating on other surface

 

850nm narrow band beam splitter plate, 18X18X1.5mm. T/R=30/70 in stock, PNBP-085010221 ($48.0): 

 
 

 
Beam splitting coating T/R=30/70±5% at 850±10nm, AOI=45º, R < 0.3% at 850±10nm on other surface. Contact us for quantity pricing.

 

1550nm narrow band beam splitter plate, 2.0X2.0X0.2mm. T/R=80/20 in stock, PNBP-155010151 ($40.0): 

 
 

 
Beam splitting coating T/R=80/20±5% at 1550±10nm, AOI=45º, R < 0.3% at 1550±10nm on other surface. Contact us for quantity pricing.

 

Ordering Information:

    P    N
  B   P

       
  X 
   
  X 
  X   
           

A

 

B

 

C

 

D

 

E

 
     

A

 Wavelength

1550 = 1550 nm  
 0980 = 980 nm
 
 XXXX = Your Application Wavelength  
 

B

 Material

 1 = BK7
 
   0 = Special  
 

C

 Dimensions

 01 = 12.7mm X 12.7mm X 3.0mm  
   Check Standard Size Table Below  
   00 = Custom Dimensions  
 

D

 Beam Splitting Ratio

1 = 50/50  
   2 = 30/70 (T/R)
 
   3 = 70/30 (T/R)
 
   4 = 20/80 (T/R)
 
   5 = 80/32 (T/R)
 
   0 = Special  
 

E

 Shape

1 = Square  
   0 = Circular  

 

Standard Size Table :  

  Dimensions P/N
L X H X W (mm) or Φ X t (mm)
  01
2.0 X2.0 X 0.4
   02
 18.0 X 18.0 X 1.5
  03
Φ25.4 X 3.0
  04
50.8 X 50.8 X3.0

 

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