C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
117/241, 341/42,
C03C 25/12 (2006.01)
Patent
CA 2017388
A method for manufacturing a coated optical fiber includes depositing aconductive coating on the optical fiber and measuring a value of conductance of that coating. Featured within the manufacturing method is a method for measuring the thickness of the conductive coating on an insulator, e.g., carbon on an optical fiber, including the following steps. An electromagnetic field is established by an input signal. The conductively coated insulator is moved through the energized electromagnetic field. The conductive coating on the insulator is oriented with respect to the electric field so that their interaction increases transmission loss from input to output. An output signal is extracted from the electromagnetic field. From changes in the output signal with respect to a predetermined standard, or reference, the conductance and the thickness of the conductive coating are determined. From the measured thickness of the coating, a control signal is generated for dynamically controlling one or more of the process parameters for depositing the coating on the insulator from a precursor gas. The coated insulator continuously moves through the apparatus without any physical contact. No interruption of the production process occurs.
Atkins Robert M.
Peterson George E.
Tuminaro Raymond D.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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