Aluminum-coated step index multimode silica fibers CCR 1.06 (High OH)
Aluminum-coated step index multimode optical fibers (Core/Clad Ratio 1.06) have all the benefits of silica-silica fibers. Additional significant improvements include increased mechanical strength and greater fatigue resistance compared to non-hermetic and polymer-clad fibers (PCS). Their transmittance covers a spectral range of 250 to 1200 nm, and also remains stable in corrosive chemicals that normally react to silica glass. The temperature range is from -196C to +400C .

FEUTURES:
  • Greatly enhanced resistance to high power laser radiation.
  • Higher core-to-clad ratio and enlarged NA optimized for coupling to high-energy lasers.
  • 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.

 

Aluminum-coated fibers
ОКM-200/212AL
ОКM-400/424AL
ОКM-600/636AL
ОКM-800/848AL
ОКM-1000/1060AL
Fiber type MM MM MM MM MM
Index profile Step Step Step Step Step
Core diameter, µm 200 ± 4 400 ± 8 600 ± 12 800 ± 15 1000 ± 20
Clad diameter, µm 212 ± 5 424 ± 12 636 ± 15 848 ± 20 1060 ± 40
Coating diameter, µm 260 ± 15 530 ± 25 830 ± 30 1060 ± 40 1350 ± 60
Cladding offset, % < 2
Coating offset, % < 5
Attenuation at 800/1300 nm (High OH) the loss spectrum in the long wavelength region ( > 1um) is higher than that of the material the loss spectrum is close to the material loss spectrum
Wavelength range, nm (High OH) 250 - 1100 250 - 1200
Coating material Aluminium
Core material Pure syntetic silica (High OH)
Clad material Doped silica
Numerical Aperture (NA) 0.22 ± 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 temperature, C -196
Max operating temperature, C 400
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