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New Product: RARe Motheye Fiber

Random Anti-Reflective Nanostructures

Fiberguide’s patented RARe Motheye fiber technology enhances fiber transmission performance and significantly increases the damage threshold for your application over a large wavelength range.

  Spec Sheet    

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RARe Motheye’s anti-reflective technology consists of nano-structures on the surfaces of fiber end faces that enables fibers to transmit more light. This makes it perfect for any application that requires high transmission from your fiber assemblies.

Compared to standard anti-reflective (AR) coatings, RARe Motheye results in a higher damage threshold, which translates to increased durability for your application.

  • High % Transmission
  • Ultra Low % Reflectivity
  • Large Wavelength Range
  • High Damage Threshold


  • Life Sciences: Flow Cytometry, Gene Sequencing, Microscopy, Spectroscopy, Medical Lasers
  • Industrial: Laser Cutting, Laser Cladding, Laser Welding, Laser Marking, Laser Engraving

  • Anti-Reflection Type: Randomized Nanosurface
  • Wavelength Range: 400nm-1550nm
  • Fiber Sizes: 3um up to 2mm core
  • Reflectivity: 0.5% from 460nm to 1550nm across 1090nm (Lower reflectivity at specific wavelengths available upon request)
  • Angle of Incidence: 0-60 degrees
  • Laser Damage Threshold: 59J/cm2, Tested at 1064nm, 16.4ns, 20Hz, Spot Dia. 0.405mm
Please see the Spec Sheet for further information.

  • Spec Sheet
  • Cleaning Protocols
    Do not directly touch surface. Clean with N2 (dry nitrogen) or CO2 Snow gun. Click here to watch demonstration video, and please contact sales rep for additional information.

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