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New: Preserve Light Polarization with the innovative Polar Guard!

Published at: 28.07.2025 08:00

New: Preserve Light Polarization with the innovative Polar Guard!

Raman and fluorescence spectroscopy, interferometry or quantum optics often require a well-defined polarization state of the incident light, which can be distorted by optical components such as mirrors or beam splitters. Until now, correcting these wavelength-dependent distortions has required considerable effort, typically using active systems.

The brand new, patented Polar Guard module preserves the light’s polarization state in a simple and efficient way. It automatically compensates for unwanted distortions and requires only conventional passive optical components such as mirrors, dichroic filters, beamsplitters which are mounted into the module.

The Polar Guard was developped by V. Multian and J. Teyssier at the University of Geneve / LTA:
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The innovative module at a glance

  • Preserves polarization for transmitted and reflected light beams
  • Reflected beam 90 °, beam axis is retained
  • Free selection of beam splitters or mirrors (3 pcs. in 14 x 9 mm)
  • Standard size for 30 mm cage systems with 7 mm free aperture
  • The free aperture can be adapted to existing systems

If you are interested in the new Polar Guard please contact us or request an offer!

Image shows the Polar Guard with incoming and outgoing light beam
Compact and effective: the Polar Guard preserves the light polarization
Image shows function principle of the Polar Guard
No more need for a complex system: the Polar Guard only requires passive components