405nm 5.0×5.0x5.0mm PBS Cube(ER500)

P/N: PBSC-405-5

Polarizing beam splitter cubes are used to split a laser beam into two orthogonally polarized components; p-polarization is transmitted straight through while s-polarization is reflected at 90-deg.
PBS Cube is commonly made by precisely cementing two triangular optical prisms together at their hyoptenuse using polyester, epoxy, or urethane-based adhesives.
PHOTONIK polarizing beam splitter cubes utilize a durable all-dielectric optical coating at the internal cemented interface, (Dichroic mirrored prism assembly); and all external surfaces are antireflection coated for the wavelength specified. For best spectral performance and transmitted wavefront, cube beamsplitters should be used with collimated or near-collimated input light. The PBS and other cemented beamsplitter cubes are easy to mount, mechanically durable and ideal for use up to 1 J/cm2 at 1064 nm.

These polarizing beamsplitter cubes use a coating rather than birefringent materials to split S & P polarization with a 90-Deg deviation at 405nm.

Substrate Material:	BK7 optical glass
Design Wavelength:	405nm centered (+/-10nm bandwidth)
Wavefront Distortion:	<Lambda/4 @ 633nm typ.
Surface Quality:	20-10 Scratch and Dig
Outer Dimension:	5.0×5.0x5.0mm
Dimension Tolerance:	+/-0.1mm (specially controlled for height of +/-0.05mm tolerance)
Top/Bottom Surfaces:	Fine ground only
Parallelism:	<20″
Extinction Ratio:	Tp:Ts > 500:1
Transmission Efficiency:	Tp > 96%
Reflection Efficiency:	Rs > 99%
Reflected Beam Deviation:	90 deg +/-5 arc min
Anti-Reflection Coating:	R<0.25%
Clear Aperture:	> 85% of dimension
Damage Threshold:	100mJ/cm2, 8nsec pulse; 100W/cm2, CW at 515nm typ.

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