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.
Please see frequently asked questions below.
- 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 single-mode optical fiber||ОК-6/125AL||ОК-9/125AL|
|Fiber type||Single mode||Single mode|
|Core diameter, µm||6.8 ± 0.5||9.1 ± 0.5|
|Mode field diameter (Gauss), µm||7.5 ± 0.6||10.0 ± 0.6|
|Clad diameter, µm||125 ± 1||
125 ± 1
|Coating diameter, µm||170 ± 5||170 ± 5|
|Cladding offset, %||< 2||< 2|
|Coating offset, %||< 5||< 5|
|Attenuation at 1550 nm1, dB/km||< 7.0||< 7.0|
|Wavelength range, nm||1500 - 1600||1500 - 1600|
|Cutoff wavelength, nm||< 1450||< 1450|
|Core material||Silica Ge-doped||Silica Ge-doped|
|Numerical Aperture (NA)||0.16 ± 0.02||0.13 ± 0.02|
|∆ n||0.009 ± 0.001||0.005 ± 0.001|
|Short-term bending radius, mm||≥ 10||≥ 10|
|Long-term bending radius, mm||≥ 25||≥ 25|
|Proof test, kpsi||100||100|
|Min operating temperature2,3, C||-196||-196|
|Max operating temperature2, C||400||400|
1- under normal climatic conditions
2- in inert environment
3- at the minimum operating temperature, the integrity of the optical fiber is guaranteed
FREQUENTLY ASKED QUESTIONS:
What is the loss value in Aluminum coated fibers?
Metallic coated fibers have higher losses than standard telecommunication fibers because when radiation passes through the fiber, small currents arise on the metal surface. That said, we have relatively low-loss single-mode fibers that are comparable to standard single-mode fibers.
How Aluminum coating is removed?
The metal coating from the fibers is removed by a chemical method. For example, immersing the fiber in a solution of ferric chloride followed by wiping with a lint-free cloth soaked in alcohol
Is it possible to metallize or recoat certain part of the fiber?
Yes, we can recoat the cleaned area. The length of the area with the recoated coating does not exceed 100 mm
What about splicing and termination Aluminum coated fibers?
Once the Aluminum coating has been removed, the fibers can be cleaved, spliced and terminated like standard telecommunications fiber. We manufacture patchcords with standard connectors
Are the fibers solderable?
Aluminum coated fibers can be brazed using a variety of solders using standard technologies
Do you offer heat-resistant cables?
Yes, we manufacture high temperature (up to 400 degrees) stainless steel braided cables. the maximum number of fibers in a cable is 24.