Hermetically sealed fiber sensing cable

US8369671B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Hua Xia · Niskayuna, US
• Axel Busboom · Unterleinleiter, DE
• Kevin Matthew Durocher · Cohoes, US
• Renato Guida · Wynantskill, US
• George Theodore Dalakos · Niskayuna, US
• Glen Peter Koste · Niskayuna, US
• Boon Kwee Lee · Niskayuna, US

Key dates

• Filing date: Feb 26, 2010
• Grant date: Feb 5, 2013
• Expiry date: Aug 3, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L11/025
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In one aspect, the present invention provides a hermetically sealed fiber sensing cable comprising: a core fiber comprising at least one Bragg grating region, an outer surface and a length; a fiber cladding in contact with the core fiber along the entire length of the core fiber, the fiber cladding having an outer surface and a length; a carbon layer disposed upon the outer surface of the fiber cladding along the entire length of the fiber cladding, the carbon layer comprising diamond-like carbon; a hydrogen ion absorption layer in contact with the carbon layer, the hydrogen ion absorption layer being disposed on the outer surface of the carbon layer; and an outer sleeve. Also provided in another aspect of the present invention, is a component for a hermetically sealed fiber sensing cable.