Polarization Optics Polarizing Beam Splitters

Polarizing Beam Splitters

  • Cube Beam Splitter
  • Plate Beam Splitter

Part NumberWavelength(nm)MaterialDiameter(mm)Thickness (mm)Angle of Incidence (°)
BSPP-266-45-1266Fused Silica25.46.3545
BSPP-266-45-2266Fused Silica50.86.3545
BSPP-355-45-1355Fused Silica25.46.3545
BSPP-355-45-2355Fused Silica50.86.3545
BSPP-532-45-1532Fused Silica25.46.3545
BSPP-532-45-2532Fused Silica50.86.3545
BSPP-980-45-1980Fused Silica25.46.3545
BSPP-980-45-2980Fused Silica50.86.3545
BSPP-1064-45-11064Fused Silica25.46.3545
BSPP-1064-45-21064Fused Silica50.86.3545
BSPP-266-B-1266Fused Silica25.43.00Brewster’s
BSPP-266-B-2266Fused Silica50.83.00Brewster’s
BSPP-355-B-1355Fused Silica25.43.00Brewster’s
BSPP-355-B-2355Fused Silica50.83.00Brewster’s
BSPC-266-1266Fused Silica25.4 x 25.4 x 25.4
BSPC-355-1355Fused Silica25.4 x 25.4 x 25.4
BSPC-VIS-1420-680N-SF125.4 x 25.4 x 25.4
BSPC-VIS-2420-680N-SF150.8 x 50.8 x 50.8
BSPC-NIR-1640-900N-SF125.4 x 25.4 x 25.4

Plate Beam Splitter – BSPP seriesCube Beam Splitter – BSPC series
Plate Beam Splitter Polarizers DiagramPlate Beam Splitter Polarizers Diagram 2Cube Beam Splitter Polarizers DiagramCube Beam Splitter Polarizers Diagram 2

BSPP series polarizers split light into two beams and transmits the p-polarized beam while reflects the s-polarized beam. The 45° angle of incidence makes mounting easier for optics comparing at Brewster’s angle of incidence. Due to the AR coating onto the surface, there is a high damage threshold that makes it useful for high optical power applications. Plate beam splitter polarizers are also used in photonics instrumentation, optical isolation and in many other applications. 

Plate Beam Splitter Polarizers are available with us in several wavelength ranges, desired wavelengths, shapes, sizes plus incidence angles and we can also make customer specifications.

Material: Fused Silica, N-BK7
Wavelength: 380-2100nm (N-BK7) | 200-2100nm (Fused Silica)
Angle Of Incidence: @ 45°, Brewster’s angle
Extinction Ratio: Tp/Ts  > 200:1
Surface Quality: 60/40 scratch and dig
Thickness: 3mm
Dimension: 0.5″, 1″ & 2″
Dimension Tolerance: +0.0/-0.2mm
Thickness Tolerance:  ±0.25mm
Damage Threshold: >5J/cm2, 20ns, 20Hz @ 1064nm

Two right-angled prisms are put together by each hypotenuse respectively with the help of cement or optical contact to form a Cube Beam Splitter Polarizer. When an unpolarized light falls on the cube beam splitter polarizer, it separates input light into two polarization components and reflects the s-component of polarization.  Optical power tolerance is higher when the two prisms of the cube beam splitter are in optical contact thus usable for high power applications.  It is used in applications where the simplified mounting and system integration is an important aspect.  It is also used in the applications for imaging systems.

Our company offers Cube Beam Splitter Polarizer for a wide range of wavelengths (UV-NIR) in different dimensions for optimized performances.  A customized Cube Beam Splitter Polarizer can be manufactured based on our customer requirements.

Material: Fused Silica, N-BK7, N-SF1
Wavelength: 380-2100nm (N-BK7) | 195-2100nm (Fused Silica) | 420-680nm (N-SF1)
Surface Contact Type: Cemented, Optically Contacted
Extinction Ratio: Tp/Ts  > 1000:1 (Narrow Band) | >100:1/>1000:1 (Broad Band)
Surface Quality: 60/40 scratch and dig | 40/20 scratch and dig
Dimension: 0.5″, 1″ & 2″
Dimension Tolerance: ±0.2mm
Damage Threshold: >500mJ/cm2 for cemented| >5J/cm2
 for optically contact, 20ns, 20Hz @ 1064nm

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