Aluminum-coated single-mode optical fibers
Aluminum-coated single-mode optical fibers have all the benefits of optical fibers include increased mechanical strength and greater fatigue resistance compared to non-hermetic and polymer-clad fibers (PCS). Their transmittance covers a spectral range of 1500 to 1600 nm, and also remains stable in corrosive chemicals that normally react to silica glass.

FEATURES:

  • Excellent mechanical strength and flexibility compared to polymer coated fibers.
  • The temperature range is from -196C to +400C.
  • The metal coating can be soldered.

 

Aluminum-coated fibers

ОК-6/125AL

ОК-9/125AL

Fiber typeSingle modeSingle mode
Core diameter, µm6.8 ± 0.59.1 ± 0.5
Mode field diameter (Gauss), µm7.5 ± 0.610.0 ± 0.6
Clad diameter, µm125 ± 1125 ± 1
Coating diameter, µm160 ± 5160 ± 5
Cladding offset, %< 2< 2
Coating offset, %< 5< 5
Attenuation at 1550 nm1, dB/km< 7< 7
Wavelength range, nm1500 - 16001500 - 1600
Cutoff wavelength, nm< 1450< 1450
Coating materialAluminiumAluminium
Core materialSilica Ge-dopedSilica Ge-doped
Clad materialSilicaSilica
Numerical Aperture (NA)0.16 ± 0.020.13 ± 0.02
∆ n0.009 ± 0.0010.005 ± 0.001
Short-term bending radius, mm≥ 10≥ 10
Long-term bending radius, mm≥ 25≥ 25
Proof test, kpsi100100
Min operating temperature2,3, C-196-196
Max operating temperature2, C400400
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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