Copper-coated gradient index multimode optical fibers
Copper-coated gradient index multimode optical fibers have increased mechanical strength and greater fatigue resistance compared to non-hermetic and polymer-clad fibers (PCS). Their transmittance covers a spectral range of 1000 to 1600 nm, and also remains stable in corrosive chemicals that normally react to silica glass. The temperature range is from -196C to +600C . Hermetically metal-coated optical fibers are the optimum candidate when used in high vacuum and harsh environmental conditions

FEUTURES:
  • Better fiber cooling due to the heat-conducting metal coating.
  • Excellent mechanical strength and flexibility compared to polymer coated fibers.
  • The metal coating can be soldered and will not outgas.

 

 

Copper-coated gradient index multimode silica fibers

ОК-50/125Cu-Gr

ОК-50/200Cu-Gr

ОК-100/140Cu-Gr
Fiber type Multimode Multimode Multimode
Index profile Gradient Gradient Gradient
Core diameter, µm 50 ± 2.5 50 ± 2.5 100 ± 2
Clad diameter, µm 125 ± 3 200 ± 3 140 ± 2
Coating diameter, µm 160 ± 10 250 ± 10 ~ 210 ± 10
Cladding offset, % < 3
Coating offset, % < 5
Attenuation at 850/1300 nm1, dB/km ~ 13 ~ 5 ~ 15
Wavelength range, nm 1000 - 1600
Coating material Copper 99,99%
Core material Silica Ge-doped
Clad material Pure silica
Additional inner layer Carbon
Numerical Aperture (NA) 0.2 ± 0.02
Short-term bending radius 60 times the fiber diameters
Long-term bending radius 120 times the fiber diameters
Proof test, kpsi 100
Min operating temperature2,3, C -196
Max operating temperature (short time < 60s)2, C 600
Max operating temperature (long time > 60s)2, C < 400
Permissible rate of temperature change in the temperature range, C/min 5
1- under normal climatic conditions
2- in inert environment
3- at the minimum operating temperature, the integrity of the optical fiber is guaranteed
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