About us.

j-fiber is one of the largest worldwide suppliers of standard and specialty optical fibers and preforms.
Our products are based on a long history of optics and optical fiber technologies and a unique in-house allocation of competences and resources from silica and preform to fiber draw and process machinery. We constantly invest in next generation fiber innovations, superior processs technologies, green and safe manufacturing as well as best quality and support. Our commitment to fiber performance, cost-efficiency and reliability makes our clients gain maximum benefits from sourcing j-fiber products.
Company

More than 30 years of fiber making experience and skills, certified processes and high capacity facilities, our own process machinery and know-how, a sound corporate background ensuring stability and resources – all there to serve you with best fiber, preform and silica products. more...
Competence Chain

Our clients benefit from an industry wide unique allocation of vertically integrated fiber making expertise, resources and product solutions and even more potential for growth and stability through j-fiber’s membership in LEONI Fiber Optics, a large optical fiber, cabling and component manufacturer and LEONI AG subsidiary. more...
Superior process technologies

With our own MCVD (Modified Chemical Vapor Deposition), PBVD (Plasma Based Vapor Deposition) and fused silica processes, we at j-fiber have a unique set of highly optimized and effective options in house which allow the manufacturing of standard and specialty fiber preforms for further drawing of high-performance Multimode and Singlemode fibers.more...
Quality&Excellence

“fibers made by j-fiber” is something you can trust. We have been ISO 9001 and 14001 certified and successfully re-certified in July 2010 and we fulfill the DoD (Department of Defense) MIL-STD 790 facility and MIL-PRF product quality standards. We optimize our processes and procedures constantly to meet your high standards in quality, cost-efficiency and delivery. more...
Green & Safe

j-fiber has always been committed to “green” and ”safe” manufacturing. We successfully passed the strict EMAS eco-audits and we protect human health and environment in accordance with the European REACH and RoHS regulations. more...
History of Expertise

Making fibers for advanced 100 Gb/s data transmission networks or enabling high-end photonics device technologies with specialty fiber solutions requires long time expertise and skills. j-fiber has its roots with the pioneers of optics technologies and glass making to own the skills and the potential for today’s and tomorrow’s advanced fiber products. more...
Contact
j-fiber GmbH
Im Semmicht 1
D-07751 Jena, Germany
Tel: +49-3641-352 100
Fax: +49-3641-352 101
info@j-fiber.com