Method of maintaining the strength of optical fibers

US4118211A · kind A · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Thomas R. Au Coin · Waretown, US
• Sam Di Vita · Long Branch, US
• Melvin Wade · Howell, US

Key dates

• Filing date: Jun 22, 1977
• Grant date: Oct 3, 1978
• Expiry date: Jun 22, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C25/42
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The mechanical strength of an optical fiber is maintained by coating the er with an inorganic ceramic material that is impervious to both moisture and chemically corrosive environments. The ceramic coating is applied immediately after the fiber is drawn.