Semiconductor Optical Amplifier-Fiber Laser and Its Application for Temperature Sensing

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  • TAKAHASHI Yoshitaka
    Department of Nano-Material Systems, Graduate School of Engineering, Gunma University
  • KURODA Hidetoshi
    Department of Nano-Material Systems, Graduate School of Engineering, Gunma University
  • SUEMUNE Tatsuro
    Department of Nano-Material Systems, Graduate School of Engineering, Gunma University

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  • 半導体光増幅器を用いたファイバーレーザーと温度計測への応用
  • ハンドウタイ ヒカリ ゾウフクキ オ モチイタ ファイバーレーザー ト オンド ケイソク エ ノ オウヨウ

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Abstract

A bi-directional fiber ring laser with a SOA (semiconductor optical amplifier) has been developed in which a frequency difference between the counter-propagating oscillations is controlled by an introduced birefringent medium. With the material which causes the retardation change by a physical phenomenon to be measured, the laser in this study is applicable to a novel fiber sensor of which the sensing signal is obtained in a frequency domain and its application for temperature sensing has been demonstrated.

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