Interferometric strain measurements with a fiber-optic probe

E. D. Burnham-Fay, D. W. Jacobs-Perkins, J. D. Ellis

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Experience at the Laboratory for Laser Energetics has shown that broadband base vibrations make it difficult to position cryogenic inertial confinement fusion targets. These effects must be mitigated for National Ignition Facility-scale targets; to this end an active vibration stabilization system is proposed. A single-mode optical fiber strain probe and a novel fiber contained heterodyne interferometer have been developed as a position feedback sensor for the vibration control system. A resolution limit of 54.5 n; is measured with the optical strain gauge, limited by the lock-in amplifier. Experimental measurements of the sensor that show good agreement with reference resistive strain gauge measurements are presented.

Original languageEnglish (US)
Title of host publicationApplied Advanced Optical Metrology Solutions
EditorsJames D. Trolinger, Erik Novak, Erik Novak, James D. Trolinger
ISBN (Electronic)9781628417425, 9781628417425
StatePublished - 2015
EventApplied Advanced Optical Metrology Solutions - San Diego, United States
Duration: Aug 10 2015Aug 12 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceApplied Advanced Optical Metrology Solutions
Country/TerritoryUnited States
CitySan Diego


  • fiber optics
  • interferometry
  • metrology
  • strain

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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