Patent · US Expired

Method of manufacturing optical fibres

US5145509A · kind A · utility

8Cited by

4References

2Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Peter Klaus Bachmann · Würselen, DE
Hans-Jurgen E. Hagemann · Aachen, DE
Jacques Warnier · Eijsden, NL
Howard J. C. Wilson · Aachen, DE

Key dates

Filing date	Oct 15, 1991
Grant date	Sep 8, 1992
Priority date	—
Expiry date	Oct 15, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/57
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In the manufacture of optical fibers according to the PCVD method, a method is provided wherein the yield of the method (.eta.), in particular at increased deposition rates (m), is raised by reducing the geometrical taper, without forming optical tapers. This is obtained in that glass is deposited in layers on the inside of a glass tube and, simultaneously, on a glass rod having a circular cross-section, which rod is arranged inside the glass tube, such that its longitudinal axis coincides with that of the glass tube, the radius of the glass rod being adjusted to at most 0.67 times and at least 0.2 times the inner radius of the glass tube, and the glass rod being removed from the glass tube upon completion of the deposition process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.