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Aluminum-coated step index multimode silica fibers CCR 1.1 (Low OH)

Aluminum-coated step index multimode optical fibers (Core/Clad Ratio 1.1) 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
ALCF-SI-100/110-LOH-RSALCF-SI-150/165-LOH-RSALCF-SI-200/220-LOH-RSALCF-SI-300/330-LOH-RSALCF-SI-400/440-LOH-RS
Fiber typeMMMMMMMMMM
Index profileStepStepStepStepStep
Core diameter, µm100 ± 2150 ± 3200 ± 4300 ± 6400 ± 8
Clad diameter, µm110 ± 3165 ± 4220 ± 5330 ± 10440 ± 12
Coating diameter, µm140 ± 8 (150 ± 8)210 ± 12300 ± 15450 ± 25565 ± 25
Cladding offset, %< 2
Coating offset, %< 5
Attenuation at 800/1300 nm (Low OH)the loss spectrum in the long wavelength region ( > 1um) is higher than that of the materialthe loss spectrum is close to the material loss spectrum
Wavelength range, nm (Low OH)400 - 1100400 - 1700400 - 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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