A novel sensing structure is proposed based on fiber Sagnac loop, and all fiber sensing for multi disturbance is realized.
提出了一种实现全光纤多扰动测量的基于光纤萨尼亚克环的新型传感结构。
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The sensing structure has the novel double Sagnac loop and WDM technology instead of traditional double light source, reducing the system error and realizing the measurement of multi disturbance.
We theoretically and experimentally analyze the transmission traits of novel Sagnac loop, and realize dual-wavelength and single wavelength output switchable ring fiber laser through adjusting PCs.