Baker Hughes Corporation

John Guarniere

Brooks A Childers

Daniel Scott Homa

Paul Samuel Zerwekh

Justin Crusse

A multi-core optical fiber sensor is described, which sensor includes an optical fiber having at least two cores, wherein the cores have collocated measurement portions, for example in-fiber interferometers or Bragg grating portions. In an exemplary embodiment, the fiber is provided with collocated measurement portions during fiberization to eliminate drift factors and to provide temperature corrected parameter measurement capabilities.

Multi-core optical fiber sensor

An optical fiber resistant to hydrogen-induced attenuation losses at both relatively low and relatively high temperatures includes a substantially pure silica core and a hydrogen retarding layer. The hydrogen retarding coating may be made of carbon, metal, or silicon nitride. The fiber may also include a cladding layer, a second silica layer, and a protective outer sheath.

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Annapolis, MD, United States of America

John Guarniere