Step Index Broadband Fiber

Step Index Broadband Fiber

SILICA Step Index Broadband Fiber (200-2000nm)

OBS Fiber – standard step index fibers
OBS Fiber – Standart step index fibers

We are glad to offer a new extremely low loss fiber for the 200 nm to 2000 nm wavelength range. Superior performance and fiber optic properties from UV to IR wavelengths: our fibers are available in a range of core diameters and assemblies, tailored to your specific application needs.

Our step index broadband fiber owns properties of low OH and high OH fibers and can be used for a variety of applications.

Technical Data

Type of fiber

Broadband (200-2000nm) Fibers

Core diameter (µm)

Available from 100µm to 800µm

Core/Cladding Ratios

Standard : 1:1.1 ; Others : 1 :1.06 | 1 :1.2 | 1 :1.4 or customised


0.12±0.02 | 0.22±0.02 | 0.28±0.02 or customised

Standard prooftest

Nylon, ETFE, Acrylate: 100 kpsi ; Polyimide: 70 kpsi

Minimum Bending Radius

50×cladding diameter (short-term mechanical stress)
150×core diameter (during use with high laser power)

OBS Fiber – Step index broadband fiber


Industrial / Scientific

  • Replacement for UV Liquid Light Guides
  • Spectroscopy
  • Sensors
  • Photolithography
  • Laser welding / soldering / marking
  • Laser delivery
  • Nuclear plasma diagnostics
  • Analytical instruments
  • Laser diode pigtailing
  • Pyrometry
  • Semiconductor capital equipment
  • Illumination and Monitoring


  • Medical diagnostics
  • Laser delivery
  • Photodynamic Therapy
  • Medical Treatments such as UV Psoriasis