Hermetically sealed metal-coated optical fibers 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 200 to 2400 nm, and also remains stable in corrosive chemicals that normally react to silica glass. The temperature range is from -196°C to +600°C and a humidity range of up to 100%. Hermetically metal-coated optical fibers are the optimum candidate when used in high vacuum and harsh environmental conditions.
- Greatly enhanced resistance to high power laser radiation.
- Higher core-to-clad ratio and enlarged NA optimised 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.
- Radiation resistant construction.
- Sterilizable using ETO, steam, e-beam or gamma radiation methods.
- Capability to feed the fibers into a high vacuum: the metal coating can be soldered and will not outgas
|Coating thickness, μm||15 to 150|
|Fiber diameter, μm||100 to 1200|
|Static fatigue parameter n||>100|
|Min operating temperature, °C||-196|
|Max operating temperature, °C||400|
Other parameters of fiber are available on the request.
SC «LLS» is the official distributor of FORC-Photonics and offers full technical support and worldwide shipping of products.
Core materialpure synthetic silica (low OH or high OH)
Clad materialdoped silica
Clad/core ratios1.05; 1.1; 1.2; 1.4
Numerical Aperture (NA)0.22 ± 0.02 (another on request)
Minimal bend radius40 times the fiber radius (long term)
Material of additional polymer jacketon request
Coating thickness15 to 150 μm
Fiber diameter100 to 1200 μm
Static fatigue parameter n>100
Min operating temperature-196°C
Max operating temperature400°C