• Visible and NIR Coating Options Offered
• Simplifies Benchtop Layout
• Split Incident Beam into Two Displaced Parallel Beams
TECHSPEC® Lateral Displacement Beamsplitters output two parallel beams separated by a fixed distance. The
beamsplitters consist of a precision rhomboid prism cemented to a λ/8 right angle prism. The high tolerance
design ensures the exiting beams are parallel to within 30 arcseconds. Entrance and exit faces feature a multilayer
anti-reflection (AR) coating for increased efficiency. Polarizing and non-polarizing coatings are available.
TECHSPEC® Lateral Displacement Beamsplitters
Non-Polarizing Polarizing
Visible NIR 632,8 nm
Substrate: N-BK7 N-BK7 N-BK7
Design Wavelength: 430 - 670 nm 720 - 1080 nm 632,8 nm
Dimensional Tolerance: ±0,1 mm ±0,1 mm ±0,1 mm
Angular Tolerance: ±5 arcsec ±5 arcsec ±5 arcsec
Exiting Beam Parallelism: <2 arcmin <2 arcmin <2 arcmin
Clear Aperture: 80% 80% 80%
Surface Flatness: l/8 l/8 l/8
Surface Quality: 40-20 40-20 40-20
Transmission/Reflection:
P-Polarization: 45% ±5% @ 430 - 670 nm 45% ±5% @ 720 - 1080 nm T > 95% @ 632,8 nm
S-Polarization: 45% ±5% @ 430 - 670 nm 45% ±5% @ 720 - 1080 nm R > 99% @ 632,8 nm
Extinction: Polarization <6% Polarization <6% >1.000:1
AR Coating: <0,5% @ 430 - 670 nm <0,5% @ 720 - 1080 nm <0,3% @ 632,8 nm
Size (A) Beam
• High Contrast Over Large Angles of Incidence
• Low Color Shift at Large Angles
• Ideal for Uncollimated Light Sources
Wire Grid Polarizing Cube Beamsplitters are designed
for applications using uncollimated light, such as with
a broadband white light source. Wire Grid Polarizing
Cube Beamsplitters consist of a wire grid polarizer
cemented between two precision high tolerance right
angle prisms. An anti-reflection coating has been applied
to each face of the beamsplitter to provide less
than 0,5% average reflection per surface. Additionally,
these beamsplitters maintain their contrast spectrally
from 400 - 700 nm and over a large cone angle of ±25°.
l/10 Plate Beamsplitters
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Wavelength Range: 400 - 700 nm
Substrate: N-BK7
Dimensional Tolerance: ±0,3 mm
Surface Quality: 40-20
Transmitted Wavefront Distortion (RMS): <0,33λ
Beam Deviation: <5 arcmin
Coating: Ravg <0,5% @ 400 - 700 nm
Transmission (typical): Tp >75% for a ±25° cone of light
Efficiency (Tp*Rs) ≥65% for a ±25° cone of light
Clear Aperture: >90%
Wire Grid Polarizing Cube Beamsplitters
Dimensions
(mm) Stock No.
Price
1-5 6-25 26+
25,4 #89-604 €420,00 €332,00
Call
Extinction Ratio
Wavelength
(nm)
Incident Cone of Light
±5° ±10° ±15° ±20° ±25°
400 - 500 2.100:1 2.000:1 1.600:1 1.400:1 1.100:1
500 - 600 4.000:1 3.900:1 2.900:1 2.600:1 1.900:1
600 - 700 6.000:1 5.500:1 4.200:1 3.800:1 2.500:1
Wire Grid Polarizing Cube Beamsplitters
• 30 Arcminute Wedge to Minimize
Internal Interference
• Wide Range of Splitting Ratios
• Fused Silica Substrate
TECHSPEC® λ/10 Plate Beamsplitters are designed
for use with a 45 degree angle of incidence and
random polarization. With a featured 30 arcminute
wedge, the effects of internal interference are minimized.
Each beamsplitter also includes a multi-layer
anti-reflection (AR) coating on the back-surface.
TECHSPEC® λ/10 Plate Beamsplitters have been
optimized for the visible spectrum and are offered in
a variety of splitting ratios. These beamsplitters are
ideal for laser applications due to the wedged design
and high quality Fused Silica substrate.
Substrate: Fused Silica
Diameter Tolerance: ±0,10 mm
Thickness: 3,00 ±0,20 mm
Surface Flatness: λ/10
Surface Quality: 20-10
Wedge Angle: 30 arcmin
Wedge Tolerance: ±10 arcmin
Edges: Protective Bevel as needed
Coating:
Beamsplitter Coating: R/T (as specified) ±5% @
550 nm, ±10% @ 400 - 700 nm
AR Coating: Ravg ≤1%, Rabs ≤2% @ 400 - 700 nm
30 arcmin
Wedge
Wedged Face
Beam Splitter
Coating
AR Coating TECHSPEC® l/10 Plate Beamsplitters
Diameter
(mm)
30R/70T 50R/50T 70R/30T
Price
1-5 6-25 26+
25,0 #34-412 #34-413 #34-414 €170,00 €130,00
Call
50,0 #34-415 #34-416 #34-417 €238,00 €180,00
Separation
Non-Polarizing VIS Non-Polarizing NIR Polarizing 632,8 nm
Stock No. Price Stock No. Price Stock No. Price
10,0 mm 10 mm #47-188 €525,00 #47-540 €525,00 #47-190 €630,00
20,0 mm 20 mm #47-189 €630,00 #47-541 €630,00 #47-191 €630,00
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Lateral Displacement Beamsplitters
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