Laser Line Non-Polarizing Beamsplitters
  • Insensitive to polarization
  • Polarization components matched to within 5%
  • Virtually zero absorption for true 50/50 beamsplitting
  • AR coated back surface eliminates ghosting
  • Slight wedge virtually eliminates internal fringes
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DescriptionSpecifications Models Catalog PDF

Newport Laser Line Non-Polarizing Beamsplitters are insensitive to the polarization of an incoming beam. Unlike broadband dielectric beamsplitters, which are extremely polarization sensitive, these beamsplitters provide a true 50/50 split regardless of the incoming polarization. The polarization components are matched to within 5%. Near zero absorption in these dielectric beamsplitters results in true 50/50 split of the beam and high damage threshold. They are especially useful for higher power applications where cemented cube beamsplitters may fail.

These beamsplitters are manufactured using high-precision BK 7 substrates to minimize wavefront distortion. A slight wedge in the substrate helps eliminate back reflections to the laser. The front surface is coated with a multilayer all-dielectric non-polarizing beamsplitter coating optimized for a specific laser line. The back surface is coated with a multilayer dielectric antireflection coating to minimize surface reflection losses and eliminate ghost images.

Non-polarizing beamsplitters are available for eleven common laser wavelengths. They are offered in a 25.4 mm diameter size to conveniently mount in Newport ULTIMA® Series, PERFORMA™ Series, and GM Series mounts.