BEAMSPLITTERS 

This beam splitter divides or combines beams with desired transmittance and reflectance in a required wavelength region. Prism and plate types are both available. Metal-film types such as chrome, aluminium, silver can also be supplied. 

Typical spectral characteristics

Polarizing beam splitters can be single or multiple, both are available. This device is a polarizing cube prism that divides laser beam or other monochromatic light into the P- and S- components at right angles with almost no absorption loss. Applications include video discs, optical data storage, and optical communications.

Optical specifications

Wavelength range (nm): 442 - 1600

Clear aperture - entrance/ exit surfaces: ³ 80%

Reflectance of entrance/ exit surfaces: £ 0.5%

Transmitted beam deviation: 0° ± 10'

Reflected beam deviation: 90° ± 20'

Extinction ratio (S-component): Ts/(Rs+Ts) £ 1/400

Standard dimensions: 5, 10, 12 and 15 mm

Typical spectral characteristics (45deg AOI)

This filter is of the plate type and can separate S and P polarized beams to transmit and reflect these respectively at low insertion loss. This can be smaller than a prism type, and has advantage of being free from any adhering agent in the beam path.

 Typical spectral characteristics