• Products
  • Applications
  • Resources
  • News
  • About us

ArmD® Fiber Bundles

Specialty Fiber Bundles

Armadillo SIA ensures the highest quality and best transmission for fiber optic bundles, while working within the boundaries of your application. In order to optimize your bundle, we take several parameters into consideration: packing efficiency, fiber area efficiency, numerical aperture optimization, fiber transmission, reflections, and an error factor (which includes numerical aperture discrepancies).

Multi-fiber assemblies

Armadillo’s Light Guide bundles are meticulously designed to ensure superior quality and optimal fiber optic properties. We fine-tune bundles to meet specific parameters, including numerical aperture (NA) and packing efficiency. Our fiber assemblies are highly flexible and can be precisely tailored to suit the unique needs of your application.


Available fibers
All fibers from our range
Active bundle surface geometries
Circular | Semi-circular | Square | Rectangular | Line | Ring | Segmented ring
Bundle design
Single-branch | Dual-branch | Multi-branch
Bundle variant
Glued | Fused end
SMA | FC / PC | ST and others upon customer request

Fused-End Light Guide Bundles

Armadillo’s Fused-End Light Guide Bundles establish the standard for consistently high long-term performance. The fusing process eliminates inter-fiber spaces, distinguishing Armadillo’s bundles as among the most sophisticated in the market. Free from reliance on adhesives, these bundles exhibit exceptional resistance to temperatures exceeding +600 °C, making them the premier choice for demanding applications.

Wavelength: PowerLightGuides 190 – 2400 nm

Numerical aperture (NA): Low 0,12 ± 0,02; Standard 0,22 ± 0,02; High 0,37 ± 0,02


  • High transmission
  • Elimination of inter-fiber spaces
  • Large active diameter
  • Availability of a wide range of ready-to-use assemblies
  • Long service life
  • Even distribution in multi-branch bundles
  • Exceptional high-temperature resistance above +600 °C


Glued fiber bundles provide unparalleled flexibility, allowing for a wide range of achievable diameters and geometries
Sorting the fibers enables an even power distribution among multiple bundle arms and enhances measurement precision through spatial mapping of the fibers.
In fused fiber bundles, the elimination of gaps between fibers leads to an increased filling factor, consequently boosting transmission by up to 20%.
AR coating
An anti-reflective (AR) coating effectively minimizes reflection back-losses at the fiber ends, resulting in a direct increase in transmission by approximately 3.5% per end.
Get in touch
Or please fill out the form and a company representative will contact you shortly.
Thank you!
The message has been sent, our representative will contact you as soon as possible.