Facility
Heraeus Covantics – Hanau Quarzglas Facility (Germany)
Heraeusstr. 12-14, 63450 Hanau — Heraeus Quarzglas GmbH & Co. KG home campus. Produces specialty and telecom optical fiber preforms via RIC® (Rod-in-Cylinder collapse) process. Flagship RIC® spec: 230mm OD × 3m preform yielding >7,000 km of single-mode fiber. Also PCVD, VAD, OVD, MCVD, FCVD capability. Fluosil® fused silica for specialty fiber (UV-IR, medical, industrial). Historically supplied fused silica tubes to Bell Labs (1973 MCVD invention). Leading provider of cladding deposition as a service to fiber makers. Specialty only — not a commodity telecom preform producer.
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