Broadband Polarizing Beamsplitter Cubes, AR Coating: 620 nm-1000 nm PBS622

Broadband Polarizing Beamsplitter Cubes, AR Coating: 620 nm-1000 nm — Model PBS622

N-SF1, optimized for 620 nm-1000 nm, cube size 12.7 mm×12.7 mm×12.7 mm, extinction ratio >1000:1.

Overview

Unmounted broadband polarizing beamsplitter cube with AR coating (620nm-1000nm, Ravg<0.5%) on all four faces. One right-angle prism is coated on its hypotenuse with a beamsplitter film; the coated prism is marked with a pencil dot on its ground top face. For optimal optical performance, the input beam should enter normally on the right-angle face of the coated prism. Also available are cube-mount adapters (e.g., CM-3) that hold the 25.4 mm cube and provide compatibility with 30 mm cage systems.

Key Features

• Extinction ratio (Tp:Ts) >1000:1
• Spectroscopic film: Tp>90%, Rs,avg>95%
• AR coating: Ravg<0.5% (6° incidence angle, single side)
• Optical coatings: AR Coating, Beamsplitter Coating
• Transmitted wavefront error: λ/4
• Surface quality: 40/20
• Beam deviation: Transmission: 0°±5 arcmin; Reflection: 90°±5 arcmin
• Substrate: N-SF1

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