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

16 May 2008 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

Author Affiliations +

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70045F (2008) https://doi.org/10.1117/12.786329
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

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.

Citation Download Citation

Keizo Inagaki, Shuichi Tamura, Tomoko Tanaka, Hiroyuki Noto, and Takahisa Harayama "Earth's rotation rate detection using an extremely large semiconductor fiber optic gyroscope extending over 10,000 m²", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70045F (16 May 2008); https://doi.org/10.1117/12.786329

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