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Partially Reflective Mirrors

Product Description: 

A partially reflective mirror has a partially transmitting coating on one surface and an antireflection coating on the second surface. When the angle of incidence (AOI) is 0 degrees, it reflects part of a beam back. The ratio of the power between two beams is determined by the coating.

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

 

 

Specification: 

Materials BK7or Fused Silica
Dimensional Tolerance ± 0.1mm
Flatness λ/4 @ 632.8nm
Surface Quality 40 ~ 20
Clear Aperture 90%
Splitting Ratio (T/R) 50/50±5%, 30/70±5% or Custom splitting Ratio
Parallelism < 30 arc seconds
AR coating   AR coating on other surface(R < 0.3%)

 

850nm partially reflective mirror, 12.7X12.7X1.5mm. T/R=50/50 in stock, PPRM-085010111 ($40.5): 

 
 

 
Beam splitting coating T/R=50/50±5% at 850±10nm, AOI=0º, R<0.3% at 850±10nm on other surface. Contact us for quantity pricing.

 

1300nm partially reflective mirror, 12.7X12.7X1.5mm. T/R=20/80 in stock, PPRM-130010141 ($42.0): 

 
 

 
Beam splitting coating T/R=20/80±5% at 1300±50nm, AOI=0º, R<0.3% at 1300±50nm on other surface. Contact us for quantity pricing.

 

Ordering Information:

    P    P
  R
  M

       
  X 
   
  X 
  X   
           

A

 

B

 

C

 

D

 

E

 
     

A

 Wavelength

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

B

 Material

 1 = BK7
 
   2 = Fused Silica
 
   0 = Special  
 

C

 Dimensions

 01 = 12.7mm X 12.7mm X 1.5mm  
   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 = 80/20 (T/R)
 
   0 = Special  
 

E

 Shape

1 = Square  
   0 = Circular  

 

Standard Size Table :  

  Dimensions P/N
L X H X T (mm) or Φ X T (mm)
  01
12.7 X12.7 X1.5
   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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