Al-Coated Silica Fibers

Main features:

  • Working temperatures up to 400°C
  • Excellent mechanical strength and flexibility
  • No outgassing under high vacuum conditions
  • Solderable into connectors (epoxy-free option)
  • Effective heat rejection along metal coating
  • Steaming, ETO, steam, e-beam or gamma sterilizable

For more information see data and downloads available below

 

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art photonics’ Aluminum Coated Silica Fibers are the optimal solution for applications in high temperature, vacuum and harsh environment conditions.

Al-coated fibers have all benefits of silica-silica fibers. Additional significant advantages include a superior mechanical strength and better fatigue resistance compared to polymer coated fibers.

The transmission range spans 220 to 2400 nm depending on UV or NIR silica fiber core choice. The working temperature range is from -270°C to 400°C; humidity – up to 100%.

Parameters of standard Al-coated Fibers
CodeTypeCoreμmCladdingμmCoating CuμmNA
100/110 AlStep Index Multimode100 ± 2%110 ± 2%145 ± 5%0.22
200/220 AlStep Index Multimode200 ± 2%220 ± 2%270 ± 5%0.22
400/440 AlStep Index Multimode400 ± 2%440 ± 2%535 ± 5%0.22
600/660 AlStep Index Multimode600 ± 2%660 ± 2%745 ± 5%0.22
50/125 AlGraded Index Multimode50 ± 2%125 ± 2%165 ± 2%0.22
9/125 AlGraded Index Multimode9 ± 5%125 ± 5%165 ± 2%0.13

 

Specifications
Core/ Cladding material Step Index Pure Fused Silica Core / Fluorine Doped Silica Cladding
Graded IndexGermanium Doped Fused Silica Core / Pure Fused Silica
Fiber core diameters, μm9; 50; 62.5; 100; 200; 400; 600
Al coating thickness, μm15 – 150 (depending on fiber diameter)
Standard Numerical Aperture (NA)0.22 ± 0.02
Available Numerical Aperture (NA)0.12 ± 0.02
0.26 ± 0.02
Min operating temperature, °C-270
Max operating temperature, °C+400
Humidity RangeUp to 100%
Minimal bending radius (long term)200 x fiber outer diameter
Minimal bending radius (short term)100 x fiber outer diameter
Tensile strength (short gauge), GPa3.5 – 6
Two point bending strength, GPa>10
Static fatigue parameter>100
  • High temperature environment
  • Harsh Chemical environment
  • Nuclear radiation resistant devices
  • Down-hole sensing for oil and gas industry
  • High Power Laser delivery
  • Medical applications

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