High-Power Laser Line Polarizing Beamsplitter Cubes PBS22-355-HP

High-Power Laser Line Polarizing Beamsplitter Cubes — Model PBS22-355-HP

UV Fused Silica, PBS cube, optimized for 355 nm, cube size 12.7 mm×12.7 mm×12.7 mm, extinction ratio >2000:1.

Overview

LBTEK provides multiple operating wavelengths from 266 nm to 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, separating the incident beam into P- and S-polarized components. 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) >2000:1
• Spectroscopic film: Tp>95%, Rs>99.5%
• AR coating: V-type AR coating, Ravg <0.25%@355 nm
• Substrate: UV Fused Silica
• Transmitted wavefront error: λ/4
• Surface quality: 40/20

Applications

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