- Hard Coated for Higher Damage Threshold
- Nine Design Wavelengths for Laser Sources
- Reflects S-Polarization 90º
- Features
- Extinction Ratio: TP:TS > 10 000:1 at 45° Angle of Incidence (AOI)
- UV Fused Silica Substrate
- Nine Design Wavelengths from 405 nm to 1550 nm
- Two Size Options Available: Ø1″ and 25.0 mm x 36.0 mm
Bote’ polarizing plate beamsplitters are offered with narrowband beamsplitting coatings deposited on the front surface designed for various laser wavelengths.
Unlike traditional polarizing beamsplitters, which are designed for use at Brewster’s angle, these optics are meant to be used at a 45° AOI, which allows for easier mounting. Although the optics can be angle tuned, doing so will result in a degradation of the attainable extinction ratio.
Polarizing beamsplitters are designed such that upon incidence the s-polarized light will be reflected at a 45° angle while the p-polarized light is transmitted.
Therefore, these beamsplitters can be thought of as a 45° high reflector with the two reflection bands offset to allow high transmission of the p-polarized component and simultaneous high reflectance of the s-polarized component.
The hard coating deposited onto the surface of these plate beamsplitters offers a higher damage threshold than typically obtained with conventional coatings.
For applications where high extinction ratio, transmission, or damage threshold is necessary, these optics are the preferred option over Polarizing Beamsplitter Cubes.
The edge of each round plate beamsplitter is engraved with the item number and an arrow pointing in the intended direction of propagation.
Our rectangular beamsplitters feature the engraved item number on the side with the beamsplitter coating, making it easy to differentiate between the front and back surfaces.