Fluorine doped quartz tube is characterized by high fluorine concentration, which makes the sinking refractive index reach - 26 × 10-3。 Our fluorine doped quartz tubes are characterized by higher fluorine content and therefore low refractive index in the market. They can be made into multilayer composite tubes with polygonal structure, such as the pump cladding of fiber laser mandrel.

Typical applications include:

Multilayer composite tubes with polygonal structure are used to manufacture laser fiber pumped cladding fluorine doped capillaries, for example, for optical and viscosity matching