PBVD Outside Deposition

expertise in preform makingPBVD Outside Deposition -expertise in preform making

Our Fluorine Doped Step Index (FSI) Preforms and our silica rods are manufactured by the Plasma Based Deposition (PBD) process.

Preform manufacturing

Extremely pure synthetic fused silica rods are overcladded with fluorine doped silica layers to obtain a preform with step-index profile. A high-frequency plasma torch is used as a heating source for the chemical reaction of SiCl4, Oxygen and a fluorine containing gas. The high temperature plasma leads to chemical deposition conditions, which allow a high fluorine concentration in the cladding material.

Plasma Based Deposition ( PBD) for preform manucturing

Expertise in rod making

Pure synthetic fused silica is deposited in axial direction from a starting element. A high-frequency plasma torch is used as a heating source for the chemical reaction of SiCl4 and Oxygen. The high temperature plasma leads to chemical deposition conditions, which produce a low OH synthetic silica.