Patent · US Active

Optical fiber grating sensors and methods of manufacture

US8989528B2 · kind B2 · utility

61Cited by
74References
21Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 23, 2008
Grant dateMar 24, 2015
Priority date—
Expiry dateDec 1, 2031

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B2090/064
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Systems and methods comprise or involve optical fibers having Bragg gratings. The optical fibers can be assembled in a parallel manner into a fiber sensor configuration. Bragg gratings can be written onto different cores of optical fibers. Bragg gratings may be written at a same or nearly same axial position for all optical fibers in the configuration and may be written at the same time and may have a substantially equal index of refraction variation and unequal lengths. Spaced Bragg gratings may also have characteristic sidelobe spectrums for tagging the respective gratings. Gratings can also be written at different wavelengths and over another grating at the same location.

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