GR-100/140-24HTA0 pages
Specialty Multi-Mode Radiation
Resistant Fibers
Nufern’s radiation resistant specialty multi-mode fibers are designed to operate for extended periods of time on low
earth orbits, near and deep space, and in applications where risk of exposure to man-made radiation is great. As with the
traditional Nufern MM fiber, these fibers are capable of withstanding extreme environments and large and fast temperature
swings. Features include step index and graded index configurations, numerical apertures from 0.06 to 0.45 and core sizes
from 10 μm to 700 μm. All fibers are available with a high temperature acrylate, silicone, or polyimide coating.
Typical Applications
Features & Benefits
• Airframe, spacecraft, missile and
• Radiation resistance — Useful in radiation environments.
UAV optical interconnects
• Operate over wide frequency range — One fiber serves broad applications
• Large bandwidth tactical cables
• Exceptional uniformity and core/clad concentricity — Minimize fiber induced signal artifacts
• Robust duty in extreme military and
• Higher proof test levels — Longest life expectancy
classified environments
• Tight diameter control — Lowest cost deployments
Optical Specifications
Operating Wavelength
Core NA
Bandwidth
Core Attenuation
GR-50/125-23HTA
GR-62.5/125-27HTA
GR-100/140-24HTA
800 – 1350 nm
0.230 ± 0.015
≥ 1000 MHz-km @ 850 nm
≥ 300 MHz-km @ 1300 nm
≤ 1.20 dB/km @ 1300 nm
≤ 3.50 dB/km @ 850 nm
800 – 1350 nm
0.275 ± 0.015
≥ 160 MHz-km @ 850 nm
≥ 500 MHz-km @ 1300 nm
≤ 0.90 dB/km @ 1300 nm
≤ 3.50 dB/km @ 850 nm
800 – 1350 nm
0.240 ± 0.020
≥ 200 MHz-km @ 850 nm
≥ 200 MHz-km @ 1300 nm
≤ 5.00 dB/km @ 1300 nm
≤ 7.00 dB/km @ 850 nm
125.0 ± 2.0 μm
50.0 ± 3.0 μm
245.0 ± 15.0 μm
≤ 3.00 μm
Graded Index
Dual Layer, High
Temperature Acrylate
-55 to 125 °C
≥ 100 kpsi (0.7 GN/m²)
125.0 ± 2.0 μm
62.5 ± 3.0 μm
245.0 ± 15.0 μm
≤ 3.00 μm
Graded Index
Dual Layer, High
Temperature Acrylate
-55 to 125 °C
≥ 100 kpsi (0.7 GN/m²)
140.0 ± 3.0 μm
100.0 ± 4.0 μm
245.0 ± 15.0 μm
≤ 5.00 μm
Graded Index
Dual Layer, High
Temperature Acrylate
-55 to 125 °C
≥ 100 kpsi (0.7 GN/m²)
Geometrical & Mechanical
Specifications
Cladding Diameter
Core Diameter
Coating Diameter
Core/Clad Offset
Core Index Profile
Coating Material
Operating Temperature Range
Prooftest Level
7 Airport Park Road, East Granby, CT 06026 • 860.408.5000 • Toll-free 866.466.0214 • Fax 860.844.0210 E-mail info @ nufern.com • www.nufern.com •
Nufern products are manufactured under an ISO 9001:2008 certified quality management system.
Standard specifications and design parameters are listed above. Specifications are subject to change without notice. Other configurations such as alternative form factors, optimized cut-off and UV cured color
coating may be available. Let us know how Nufern can assist with your requirements.
NU0092- 11/07/2013