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Specification Sheet
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/productlist/Product-Lines/Fiber-Optic-Imaging,-Energy---Sensing/Graded-index-glass-clad-fiber-(multi-mode)/img/Large-core-fiber
Large core fiber

Graded index glass clad fiber (multi-mode)

Features:

  • Finer optical permeation over a wide region
  • 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:

  • High power laser optic transmission
  • Laser surgery
  • Spectrum analyzer
  • Temperature measurement
  • Light guiding illumination
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Product Description

We can also provide fiber assemblies terminated with connectors.
Terminal configuration (sleeve, connector) can be either Fujikura standard or customer specifications.

 

Fujikura large core fiber - G series [Graded index glass clad fiber for VIS to NIR]

 

Model
Name

Refractive
Index
Profile

Core /
Cladding
Material

Core /
Cladding
Diameter
[μm]

Jacket
Diameter
[μm]

Attenuation
[dB/km]

Coating /
Jacket
Material

NA

Operation
Temperature
[°C]

Minimum
Bending
Radius
[mm]

G.200/250

Graded Index

GeO2-SiO2 /
SiO2

200 / 250

900

≤10
(@850nm
and
@1064nm)

Silicone /
Polyamide

0.21

-20 to 60

50

G.400/500

400 / 500

1100

100

G.600/750

600 / 750

1400

150

G.800/1000

800 /1000

1700

200

G.200/250L

200 / 250

900

≤10
(@850nm
and
@1064nm)

Silicone /
Polyamide

0.25

-20 to 60

50

G.400/500L

400 / 500

1100

100

G.600/750L

600 / 750

1400

150

G.800/1000L

 

 

 

 

 

Fujikura large core fiber - G series with corded structure [Graded index glass clad fiber for VIS to NIR]

 

Model
Name

Refractive
Index
Profile

Core /
Cladding
Material

Core /
Cladding
Diameter
[μm]

Jacket /
Cord
Diameter
[μm]

Attenuation
[dB/km]

Coating /
Jacket /
Cord
Material

NA

Operation Temperature
[°C]

MInimum
Bending
Radius
[mm] (note)

GC.200/250

Graded Index

GeO2-SiO2 /
SiO2

200 / 250

900 / 2800

≤10
(@850nm
and
@1064nm)

Silicone/
Polyamide/
PVC

0.21

-20 to 60

50

GC.400/500

400 / 500

1100 / 2800

100

GC.600/750

600 / 750

1400 / 2800

150

GC.800/1000

800 /1000

1700 / 3300

200

GC.200/250L

200 / 250

900 / 2800

≤10
(@850nm
and
@1064nm)

Silicone/
Polyamide/
PVC

0.25

-20 to 60

50

GC.400/500L

400 / 500

1100 / 2800

100

GC.600/750L

600 / 750

1400 / 2800

150

GC.800/1000L

800 / 1000

1700 / 3300

200

 

 

Notes:

- Minimum Bending Radius is long term bending radius (fibers placed in storage)
- Other size for core diameter, cladding diameter, non-standard NA Fiber are available.
- PFA, ETFE, FEP, Jacketed Fiber and Hard Polymer Cladding Fiber (HPCF) are also available.

- Our products support RoHS Directive.

- USP Class VI biocompatible

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