BeamSplitter Plate

The common Beam splitters are used to split or combine laser beam. However Polarization BeamSplitters are used to split or combine two perpendicular polarization laser beam. The performance of beamsplitters is mainly dependent on the coating specifications.

Beamsplitter Plate

Specification:
Material: ---N-BK7 or H-K9L grade A optical glass
Dimension Tolerance:------- ±0.2mm
Thickness Tolerance: --------±0.2mm
Flatness: --- λ /4 @ 632.8 nm
Surface Quality: -----60/40 scratch and dig
Parallelism: -------------<1 arc minute
T/R:-------------50/50±5%, for random polarization
-----------------------------------T=(Ts+Tp)/2, R=(Rs+Rp)/2

Coatings: (Incidence angle: 45 degree)
Surface1: ----------------------partial reflection coating
Surface2: ----------------------Anti Reflection coating

Standard Coating wavelength:
Narrow Band: ---------488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550 nm
Broadband: -------------450-650, 650-900, 900-1200, 1200-1550, 1500-1610 nm

Standard Size:

Size(mm)	Narrow Band	Broadband
Size(mm)	Part No.	Part No.
10x10x2	BSP1103	BSP1203
12.7x12.7x2	BSP1104	BSP1204
25.4x25.4x2	BSP1105	BSP1205
ф25.4x2	BSP1106	BSP1206

Ordering Information:

Part No, - wavelength
For example, BSP1203 - 1500-1610,
Beamsplitter 10X10mm, 1500-1610 nm broadband coating.

Note for BeamSplitter Plate:

1.Custom-made non-standard Beamsplitter Plate at any size (from 2.0x2.0x2.0mm to 50.0x50.0x50.0mm) or

shape (such as quadrate, triangular.) is available upon request.

2.Besides N-BK7, Custom-Made Beamsplitter Plate, which is made of other optical material, such as Fused

Silica, Pyrex, is available upon request.

3. High Precision Beamsplitter Plate with better Flatness (<l/8), Better Surface Quality (better than 20/10)

and Better parallelism (<3”) is available upon request.

4. Besides 50/50, non-standard splitting ratio (from T/R=90/10 to 10/90) is available upon request.

Cube Beamsplitter

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