J-Fiber Jena

Radiation Hard Fiber

Multimode and Singlemode fibers designed to perform in irradiation threatened environments

For transmission applications in irradiation threatened environments j-fiber offers a comprehensive portfolio of radiation hard fiber. They feature high bandwidth, low attenuation change and fast recovery under Gamma irradiation. For its radiation hard fibers, j-fiber is fully approved supplier to the U.S. Department of Defense according to MIL-PRF 49291 standard.

Radiation hard Multimode fibers


j-fiber specialty graded index Multimode fibers have been designed to withstand hazards of radiation threatened environments in defense, aerospace, and industrial applications and are available in core sizes of 50µm, 62.5µm and 100µm. With OptiGrade Rad Hard R.H. we offer a radiation hard 50 µm core size fiber for high bandwidth 10Gb/s transmission in low cost system applications and assessed radiation performance for pulsed and continuous irradiation. more...

Radiation hard Singlemode fibers


with excellent recovery times after pulsed and continues irradiation with doses of up to 3000rad. Compliant to G.652.B, the fiber is optimized to operate in the 1310nm and 1550nm window. Ideal for applications which require shortest recovery times such as in military plane systems or ground communication. In addition the fiber is also available in our 500µm coating design for rugged cable constructions. more...



j-fiber GmbH
Im Semmicht 1
D-07751 Jena, Germany

Tel: +49-3641-352 100
Fax: +49-3641-352 101