Low-polarizing Cube Beamsplitters0 pages

OPTICAL COMPONENTS

Low-polarizing Cube Beamsplitters

Spherical Lenses
Cylindrical Lenses

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Lens Kits

Metal-dielectric hybrid coatings
Broadband neutrality
Low polarization effect
Low absorption
Standard cubes from
5 to 20mm

Achromatic Doublets
Multi-Element
Micro Optics
Mirrors
Prisms
Substrates & Windows
Beamsplitters
Polarizers
Filter & Apertures

These popular cube beamsplitters use a special combination of metallic and dielectric
coatings on the internal splitting face to produce an even split in intensity with minimal
polarization and minimal absorption. They make excellent beamsplitters for all but the
most demanding applications. Beamsplitting is almost neutral over a broad range of
wavelengths. Four wavelength ranges are offered. Two are broadband (400-700 &
600-900) and two are ultra-broadband (400-1000 & 800-1600). The reflected and
transmitted beams each contain about 45% of the incoming intensity with only 10%
absorbed. Also the s- and p- polarization components are within ±10%.
These beamsplitters are made from optical grade BK7. The faces are polished flat to λ/4
and two like prisms are cemented together to form a cube. Both pairs of sides are parallel
to within 5arcmin. The four outer faces are broadband Anti-Reflection coated.
Four standard sizes are offered: 5,10,15 and 20mm. Larger sizes are available on request.

Specifications & Tolerances
R=T: 45%±10%
t
Dimensions: ±0.2mm
Prism flatness: λ/4 t
Beam deviation: ≤5arcmin
Surface quality: 40-20
t
Material: BK7, grade A
Rs - Rp: <10%t

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ORDERING
&
TECHNICAL SUPPORT

(949) 851-5881
FAX (949) 851-5058
E-MAIL

sales@optosigma.com
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WEB

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www.optosigma.com

CUBE BEAMSPLITTER

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