Improvement of accuracy of angular velocity detection in semiconductor fiber-optic ring laser gyroscope

Tomoki Ishida*, Shuichi Tamura, Satoshi Simada, Keizo Inagaki, Shigeru Saito, Takahisa Harayama

*この研究の対応する著者

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

A semiconductor fiber-optic ring laser gyroscope (S-FOG) consists of a semiconductor optical amplifier (SOA) and optical fiber to form a ring cavity. The fiber ring cavity enables larger sizes and smaller scattering, while the SOA gain is shared by the clockwise (CW) and counterclockwise (CCW) propagating modes. When the S-FOG is rotated, a new beat signal called the Sagnac beat frequency is observed. We investigated the effect of the fiber ring cavity's length on detection characteristics. Detection sensitivity was not dependent on the number of laps of fiber ring cavity. However, when the cavity length became longer, the linewidth of Sagnac beat became narrower, and then accuracy of angular velocity detection improved. The relation between the linewidth Av of the Sagnac beat and cavity length P was proved to be Δ≈ -1.86.

本文言語English
ホスト出版物のタイトル19th International Conference on Optical Fibre Sensors
DOI
出版ステータスPublished - 2008
外部発表はい
イベント19th International Conference on Optical Fibre Sensors - Perth, WA, Australia
継続期間: 2008 4 152008 4 18

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
7004
ISSN(印刷版)0277-786X

Conference

Conference19th International Conference on Optical Fibre Sensors
国/地域Australia
CityPerth, WA
Period08/4/1508/4/18

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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