J-Fiber Jena

More than 30 years of Tradition and Experience in the development and manufacturing of optical fiber technologies – and a rich company history

2017 Merger of subsidiary FiberCore Machinery GmbH into parent company j-fiber GmbH

2012 j-fiber becomes a 100% member of the LEONI Group
As subsidiary of LEONI Business Unit Fiber Optics j-fiber today focusses on its core business Multimode fibers for applications in LAN and data center and serves BU Fiber Optics as competence center for optical glass and preforms

2011 j-fiber Group acquires SCHOTT Lithotec’s fused silica melting process
Strategic aim: access to in-house ultra-pure fused silica materials and marketing of fused silica to optics, laser and lithography markets under the traditional brand „SQ"

2007 LEONI Group acquires 51% of j-fiber shares

2004 FiberCore Jena becomes j-fiber: consolidated and re-named FiberCore Jena now operates under the new name j-fiber

2003 From newcomer to global player: FiberCore Jena expands its standard fiber, specialty fiber and preform business to become one of the leading worldwide fiber companies

Gebäude Maua

2002 Opening of the new draw tower manufacturing facility
Significantly expanded manufacturing capacities allow for high-volume standard and specialty fiber manufacturing

2001 FiberCore Jena GmbH changes its company form and registers itself as FiberCore Jena AG.

1994 FiberCore Jena GmbH is founded
The new company is the world's only independent supplier of optical fibers, offering a complete portfolio from glass to high-performance fibers – manufactured on FiberCore machinery with optimized MCVD process technologies

1993 Integration of Facilities
The integration of the complete fiber production at the Jena location materializes in highly efficient production.

1979 Development of preforms and fibers to final process technologies

1978 Start of the first fiber optics project
As a worldwide pioneer the Jena Glass Works starts a fiber optics project. The company’s expertise goes back to the tradition of Carl Zeiss, Schott and Ernst Abbe that made Jena a worldwide leading center of excellence for glass making crafts, leading-edge optics, and precision optics manufacturing.



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

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