Large ring laser gyroscopes: Towards absolute rotation rate sensing

Robert B. Hurst, Nishanthan Rabeendran, Jon Paul R. Wells, K. Ulrich Schreiber

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Ring laser gyroscopes have increased in sensitivity by six orders of magnitude over the last several decades such that they are poised to make valuable contributions to geodesy and terrestrial tests of general relativity. To fully exploit their capabilities, residual (time varying) read out errors arising from backscatter coupling must be physically minimized or otherwise compensated. We present the results of a backscatter correction process for a 12.25 m2 gyroscope with a vast improvement in long term rotational sensitivity.

Original languageEnglish
Title of host publicationInternational Seminar on Photonics, Optics, and Its Applications, ISPhOA 2014
EditorsAulia Nasution
PublisherSPIE
ISBN (Electronic)9781628415599
DOIs
StatePublished - 2015
EventInternational Seminar on Photonics, Optics, and Its Applications, ISPhOA 2014 - Sanur, Bali, Indonesia
Duration: 14 Oct 201415 Oct 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9444
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Seminar on Photonics, Optics, and Its Applications, ISPhOA 2014
Country/TerritoryIndonesia
CitySanur, Bali
Period14/10/1415/10/14

Keywords

  • Earth rotation
  • Ring laser
  • backscatter coupling
  • interferometry

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