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Fiber Optics for sensor technology and analytics

LEONI Fiber Optics is one of Europe’s leading producers of high-end quartz/quartz multi-mode fibers and of custom-made fiber-optic probes for industrial and scientific applications. They are of crucial importance in spectroscopy for chemical analysis with its exacting demands in the IR spectral range.
LEONI Fiber Optics with its FiberTech®-Products is a leading special fiber producer for high-temperature, vacuum, and nuclear applications.


Fields of application

  • Spectroscopy (Raman, NIR, MIR, UV-VIS) 
  • Reflective Sensors 
  • Quality control systems
  • Particle detection 
  • Fluorescence excitation
  • Optical detection
  • Environmental analytics
  • Surface analytics
  • Optical microscopy

Probe features

  • Various diameters, X Y-bundles, probes, any special designs available
  • Bundles with special terminations: round to round, line, square, rectangle
  • Various fiber arrangements (statistically randomized, other) 
  • Fibers: 10 µm to 2000 µm, NA: 0,10 to 0,49 
  • Wide range of various tubes and connectors: 
  • Standard tubes: kevlar, PTFE, PVC, metal-pvc/silicone, stainless steel
  • Tubes for special requirements (material, properties, structure) available
  • Connectors: SMA, FC/PC, DIN, ST, customized connectors, capillaries

Optical fibers – In-house fiber production

Multimode and singlemode fibers, Step-index and graded-index profile, various numerical apertures, coatings and claddings, deep UV to MIR, Fiber rods, Fiber taper, Capillaries

Optical assemblies and components

Fiber-Optic-Cables, Fiber bundles, Hybrid cables, Fiber matrix probes, Reflection probes, Fiber arrays, Cross-section converters, Multi-branched fiber bundles, Lensed fiber optics, Vacuum feed-throughs, Fiber switches, Fiber splitters

Please consult us so that we can set up your individual service needs together with you!

Your Partner:

Business Unit Fiber Optics
Jeannine Schoenbeck, MBA
Market Manager Optical Metrology



Optical switches for singlemode and multimode applications 

  • usable for all singlemode fibers 405nm-1650nm in various no. of channels
  • use of polarisation maintaining (PM) fibers possible
  • optical power depends on type of fiber up to 10 W 
  • applicable bidirectional 
  • Multimode switches are usable for all LargeCore fibers from 50µm up to 800µm and fibers from 190nm-1000nm and 450nm-2400nm wavelength ranges
  • Sensoring systems, spectrometry, confocal microscopy

Please consult us so that we can set up your individual service needs together with you!

Your Partner:

Business Unit Fiber Optics