ArmadilloSIA® non-circular core silica optical fibers display similar outstanding performance and transmission as ArmD™ UV/WF fibers. Low focal ratio degradation and good image scrambling make it perfect for astronomy applications.
Image Credit: Armadillo SIA
When used with diode lasers, which offer a square-shaped output, the square core fibers provide higher coupling efficiencies than circular fibers.
In laser applications like surface pre-treatment, it is possible to process the material in a uniform way compared to what is possible with a circular beam due to less overlapping. The square output beam decreases the requirement for beam shaping optics.
Three types of standard radii are available for a square shape: r4<10%, 10%<r4<20%, r4 >20%.
Features
- Broad UV/VIS/NIR spectral range
- ArmD™ WF: 300 to 2400 nm
- ArmD™ UV: 190 to 1200 nm
- Broad temperature range (−190 °C to 350 °C)
- High laser damage resistance provided
- Comes with various core geometries; for example, square, octagonal, rectangular, etc.
- Homogeneous power distribution
- Image scrambling characteristics is outstanding
- Manufactured at ISO 9001-compliant facilities
- Materials are biocompatible
- Excellent focal ratio degradation characteristics
- Sterilizable by ETO and other techniques
Physical Properties:
- Step index profile
- ArmD™ WF: low OH-content <1 ppm
- Pure synthetic fused silica core
Available NA:
- Low NA: 0.16 ± 0.02
- High NA: 0.28 ± 0.02
- Standard NA: 0.22 ± 0.02
Standard Prooftest:
- 100 kpsi (Nylon, ETFE, Acrylate jackets)
- 70 kpsi (Polyimide jacket)
Minimum Bend Radius:
- 150 × clad diameter (long term)
- 50 × clad diameter (momentary)
Image Credit: Armadillo SIA