Preforms

Designs for various core profiles and dopings

High-quality preforms form the basis for manufacturing and deploying high-performance special and standard fibers. Thanks to our understanding of the performance parameters required of the final product and the methods of influencing these at each stage of the manufacturing process, we can create the perfect product to match your individual requirements. Whether your target application involves high data transmission rates or high-power laser transmission: we can customize the waveguide design needed from the prototype stage to high-volume production to meet your exact requirements.

Your advantages at a glance

  • Preforms for manufacturing fibers with optimum properties for the most demanding applications
  • Design can be adjusted to match application wavelengths from UV to IR
  • Each preform is given a stringent final quality inspection that also includes a verification of the target parameters

Range of products and services

Product portfolio

  • Specification of the preform design and configuration in relation to the core profile (step-index or graded-index) and dopant (e.g. germanium, fluorine, or boron) to achieve the numerical aperture needed
  • Accounting for the required preform geometry and shape requirements for core and cladding, so as to enable application-specific assembly according to your requirements
  • Multimode preform 50/125 and 62.5/125
  • Fluorine-doped step-index preforms (FSI)
  • Germanium-doped step-index preforms
  • Solutions to match individual performance parameter requirements for the complete wavelength range from UV to VIS, NIR, and IR
  • Photosensitive preforms
  • Specified solutions – manufactured to customer specs

Process technologies

Three optimized, high-efficiency process technologies are available:

  • production of Fused Silica via flame hydrolysis
  • plasma-based outside vapor deposition (POVD)
  • modified chemical vapor deposition (MCVD)

We combine these methods to create ultrapure Fused Silica materials with outstanding optical and physical properties.

Ordering options

  • Numerical aperture (NA)
  • Cladding-to-Core diameter ratio (CCDR)
  • Outer diameter
  • Preform length
  • Core profile (step-index or graded-index profile)
  • Core material (doping)

If required, our preforms can be supplied with a handle (recommended for multilevel preforms) that enables the preform to be clamped in the draw tower for drawing into fibers.


Contact

Publications

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

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

Sales network

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