Aluminum-coated step index multimode silica fibers CCR 1.06 (Low 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 400 to 2200 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

ОК-600/636AL

ОК-800/848AL

ОК-1000/1060AL

Fiber typeMMMMMM
Index profileStepStepStep
Core diameter, µm600 ± 12800 ± 151000 ± 20
Clad diameter, µm636 ± 15848 ± 201060 ± 40
Coating diameter, µm830 ± 301060 ± 401350 ± 60
Cladding offset, %< 2
Coating offset, %< 5
Attenuation at 800/1300 nm (See grapf Low OH)the loss spectrum is close to the material loss spectrum
Wavelength range, nm (See grapf Low OH)400 - 2200
Coating materialAluminium
Core materialPure syntetic silica (low OH)
Clad materialDoped silica
Numerical Aperture (NA)0.22 ± 0.02
Short-term bending radius60 times the fiber diameters
Long-term bending radius120 times the fiber diameters
Proof test, kpsi100
Min operating temperature, C-196
Max operating temperature, C400
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