Multi-core optical fiber pressure sensor

Details Multi-core optical fiber pressure sensor Multi-core optical fiber pressure sensor

2007-12-18

2007-12-18

Wong, Tina M. (Department: 2874)

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

C385S012000, C385S037000

Reexamination Certificate

active

11445765

ABSTRACT:
A multi-core optical fiber pressure 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 arranged such that a pressure induced force will act on the multi-core fiber at said collocated position, affecting the light guiding cores in a different manner. In another exemplary embodiment, the optical fiber is configured to bend in response to pressure changes.

REFERENCES:
patent: 2002/0041724 (2002-04-01), Ronnekleiv et al.
patent: 2003/0209655 (2003-11-01), Wang
patent: 2004/0179765 (2004-09-01), Kersey et al.

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