Radiation-hard singlemode and multimode fibers

For use with high levels of radiation

Radiation-hard multimode and singlemode fibers have been specially developed for applications involving greater exposure to radiation – such as aerospace – and to enable reliable data transmission under these demanding environmental conditions.

As an approved MIL-STD 790 supplier to the U.S. Defense Logistics Agency, we also offer our singlemode and multimode fibers according to the MIL-PRF specification for use in radiation-threatened environments.

Your advantages at a glance

  • Fibers fulfil or exceed the quality standards ITU G.651/ITU G.652 and IEC 60793-2-10/IEC 60793-2-50, and are tested and approved to the MIL-PRF-49291 standard
  • 100% quality inspection according to IEC 60793-1
  • High radiation hardness, especially against continuous gamma irradiation
  • Compatibility with all standardized graded-index multimode and singlemode fibers
  • Outstanding splice properties plus compatibility with installed fiber networks and photonic components
  • Available with a coating diameter of 250 µm or 500 µm

Range of products and services

Product portfolio

  • Radiation-hard graded-index multimode fibers: 50/125, 62.5/125
  • Radiation-hard singlemode fibers: 09/125
  • 250 µm and 500 µm coating

Product properties

  • Radiation-hard
  • Compatibility with all standard multimode and standard singlemode fibers
  • Suitable for harsh environments, high temperatures (for optional coatings, see ordering options)
  • Colored and ring-marked (optional)

Ordering options

  • Various lengths
  • Various proof test levels
  • Special coatings (500 µm coating, high-temperature coating)
  • Colored or ring-marked
  • Singlemode and multimode fibers according to the MIL-PRF specification for use in radiation-threatened environments



Please contact us for further information. We look forward to your inquiry.

Europe, Africa, and Asia (excl. China)
Phone +49 3641-352-100
Email info@j-fiber.com

Phone +86 519-8988-7783
Email fo-china@leoni.com 

Sales network

Contact form

Fiber Optics

Light switching · Light transportation· Light distribution


Innovative fiber optics solutions