Custom Specialty Fiber

Lumentum has developed a state-of-the-art facility for the production of custom specialty fiber. The facility is a key element in Lumentum’s objective to become a fully vertically integrated manufacturer for kW fiber lasers. Lumentum produces a wide range of optical fibers and fiber-based components.

Custom Specialty Fiber


The Lumentum state-of-the-art facility for fiber development and manufacturing includes preform fabrication capability using custom-developed modified chemical vapor deposition (MCVD) technology combined with proprietary in-house rare-earth doping systems.

Fiber doping options include:

  • Germanium, phosphorus, fluorine, aluminum, titanium, boron
  • Rare earth ions: Yb, Ce, Er, Nd, Ho, Tm, Eu, Sm

Our technology can accommodate: 

  • Coating applicators: open-cup or pressurized; single- or dual-layer, wet-on-dry, or wet-on-wet 
  • Fiber diameters from 50 µm to over 1000 µm
  • Fiber types: double-clad, triple-clad, round, octagonal

All fibers are tested using industry-standard metrology processes:

  • Geometrical measurements
  • Absorption 
  • Numerical aperture
  • Proof strength test using 4-axis bend tester

Lumentum can provide the right solution for your fiber requirements

Please contact us to discuss your specialty fiber needs. Lumentum will work with you to develop a fiber solution based on your specifications and schedule.