Laser Line Polarizing Beamsplitter Cubes PBS22-935-SP

Laser Line Polarizing Beamsplitter Cubes — Model PBS22-935-SP

UV Fused Silica, optimized for 935 nm, cube size 12.7 mm×12.7 mm×12.7 mm, extinction ratio >3000:1.

Overview

Ten design wavelengths are available (405, 532, 633, 780, 808, 830, 850, 1030, 1064 and 1550 nm). On a polarizing beamsplitter cube, the prism marked with a black dot on its top face indicates the hypotenuse coated with a dielectric polarizing beamsplitter film. This dielectric beamsplitter film reflects S-polarized light and transmits P-polarized light. Any of the four side faces can serve as the input surface. For optimal polarization performance, the input beam should enter at normal incidence on the right-angle face of the prism whose hypotenuse carries the polarizing beamsplitter film.

Key Features

• Extinction ratio (Tp:Ts) >3000:1
• Spectroscopic film: Tp>95%, Rs>99.5%
• AR coating: Ravg<0.5%@633 nm (6°angle of incidence, per surface)
• Optical coatings: AR coating + beamsplitter film
• Surface quality: 20/10
• Beam deviation: Transmission: 0°±5 arcmin; Reflection: 90°±5 arcmin
• Substrate: UV Fused Silica

Applications

• Laser polarization control and beam separation
• Interferometry and polarimetry setups
• Optical isolators and magneto-optic modulators
• Polarization-sensitive imaging and spectroscopy
• High-contrast laser systems requiring stable extinction