Earth's rotation rate detection using an extremely-large semiconductor fiber optic gyroscope extending over 10,000 m2

Keizo Inagaki, Shuichi Tamura, Tomoko Tanaka, Hiroyuki Noto, Takahisa Harayama

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

3 Citations (Scopus)

Abstract

We detect the Earth's rotation rate using a semiconductor fiber optic gyroscope (S-FOG), which is an active ring laser gyroscope that consists of a semiconductor optical amplifier (SOA) and a fiber optic ring resonator. Four different optical fiber layouts with different scale factors in rotation rate measurement are configured and measured. Expected Sagnac beat signals proportional to the scale factors are observed. The maximum layout of S-FOG is extended over 10,898 m2, which, to our knowledge, is the largest active ring laser gyroscope ever built.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7004
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event19th International Conference on Optical Fibre Sensors - Perth, WA
Duration: 2008 Apr 152008 Apr 18

Other

Other19th International Conference on Optical Fibre Sensors
CityPerth, WA
Period08/4/1508/4/18

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Keywords

  • Earth's rotation rate
  • Fiber optic gyro
  • FOG
  • Large RLG
  • Ring laser gyroscope
  • RLG
  • Sagnac effect

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Inagaki, K., Tamura, S., Tanaka, T., Noto, H., & Harayama, T. (2008). Earth's rotation rate detection using an extremely-large semiconductor fiber optic gyroscope extending over 10,000 m2 In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7004). [70045F] https://doi.org/10.1117/12.786329