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

doi:10.1117/12.786329

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 proceeding › Conference 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 language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7004
DOIs	https://doi.org/10.1117/12.786329
Publication status	Published - 2008
Externally published	Yes
Event	19th International Conference on Optical Fibre Sensors - Perth, WA Duration: 2008 Apr 15 → 2008 Apr 18

Other

Other	19th International Conference on Optical Fibre Sensors
City	Perth, WA
Period	08/4/15 → 08/4/18

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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

Earth's rotation rate detection using an extremely-large semiconductor fiber optic gyroscope extending over 10,000 m² . / Inagaki, Keizo; Tamura, Shuichi; Tanaka, Tomoko; Noto, Hiroyuki; Harayama, Takahisa.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7004 2008. 70045F.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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, 19th International Conference on Optical Fibre Sensors, Perth, WA, 08/4/15. https://doi.org/10.1117/12.786329

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10.1117/12.786329