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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
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| 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%)
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850nm partially reflective mirror, 12.7X12.7X1.5mm. T/R=50/50 in stock, PPRM-085010111 ($40.5):
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| 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):
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| 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:
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P |
P
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R
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M
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X |
X |
X |
X |
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X |
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X |
X |
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X |
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X |
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A
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B
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C
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D
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E
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A
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Wavelength
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1550 = 1550 nm |
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0980 = 980 nm
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| XXXX = Your Application Wavelength |
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B
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Material
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1 = BK7
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2 = Fused Silica
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0 = Special |
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C
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Dimensions
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01 = 12.7mm X 12.7mm X 1.5mm |
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Check Standard Size Table Below |
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00 = Custom Dimensions |
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D
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Beam Splitting Ratio
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1 = 50/50 |
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2 = 30/70 (T/R)
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3 = 70/30 (T/R)
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4 = 20/80 (T/R)
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5 = 80/20 (T/R)
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0 = Special |
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E
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Shape
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1 = Square |
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0 = Circular |
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Standard Size Table :
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Dimensions P/N
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L X H X T (mm) or Φ X T (mm)
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01
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12.7 X12.7 X1.5
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02
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18.0 X 18.0 X 1.5
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03
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Φ25.4 X 3.0
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04
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50.8 X 50.8 X3.0
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