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Large Core Fibre

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Large Core Fibre

Fujikura manufacture and supply a variety of high performance large core optical fibres.

Fujikura's large core optical fibre is made from silica glass, which is excellent for transmission of high density optical energy from ultraviolet rays to near infrared rays. A superior guide for laser beams; with a wide range of wavelengths for applications which require high power optical energy. For example: laser processing machinery and laser cutters, optical sensors, analyzers etc.

Terminal configuration (sleeve, connector) can be either Fujikura standard or customer specifications.

Features:

  • Fine Optical Permeation over a wide region (DUV ~ NIR)
  • Excellent performance in Laser Welding Machines and in the Laser Surgery Field where High Power Optical Energy is required
  • High Mechanical Strength allows easy handling
  • Various Terminal Assemblies are available to suit customer specific requirements

Applications:

  • UV Spot Curing
  • High Power Laser Optic Transmission
  • Radiation Resistance
  • Spectrum Analyser
  • Laser Surgery
  • Temperature Measurement
  • Ultra-Violet Light Guiding
  • Fluorescent Analysis
  • Light Guide Illumination
Structure
 
UV Coated Fiber Jacketed Fiber
Cord
 
Loss Spectrum Graph
Loss Spectrum Graph
 

Attenuation characteristics of large core optical fibre : for UV-VIS fibre.

Attenuation characteristics of large core optical fibre : for UV-VIS fibre

Attenuation characteristics of large core optical fibre : for VIS-NIR fibre.

Attenuation characteristics of large core optical fibre : for VIS-NIR fibre.

Specifications of UV grade fibre (standard type)

Item
200/250
400/500
600/750
800/1000
Type
Secondary coat : S / PVC sheath : SC
Index Profile

Step

Core Material

Pure silica (high OH)

Core Diameter (µm)
200
400
600
800
Cladding Diameter (mm)
250
500
750
1000
Coating Material
Low refractive index silicone
Numerical Aperture
0.20
Attenuation (dB/km)
<10 at 0.80µm
Allowable Bending Radius (mm)
50
100
150
200


Specifications of VIS for Near IR grade fibre (standard GI type)

Item
200/250
400/500
600/750
800/1000
Type
Secondary coat : G / PVC sheath : GC
Index Profile

Graded

Core Material

GeO2 doped silica

Core Diameter (µm)
200
400
600
800
Cladding Diameter (mm)
250
500
750
1000
Coating Material
Low refractive index silicone
Numerical Aperture
0.20/0.25
Attenuation (dB/km)
≤ 10 at 0.85µm
Allowable Bending Radius (mm)
50
100
150
200

*Fujikura can also provide individual optical fibres to your requirements.


Cross sectional view of large core fibre.

Cross sectional view of large core fibre

Fibre end termination (standard type)

Termination Type
Connector Assembly
FC connector
FC connector
SMA connector
SMA connector
Laser connector
Laser connector
Stainless steel sleeve
Stainless steel sleeve

*Branch type is available


 
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