The Study of Circular Fiber Bragg Grating Interrogation System by Fiber Ring Laser Mode-locked signal and its Measurement Characteristics

• Main Authors: Shang-wei Yeh, 葉上維
• Other Authors: Ming-chang Shih
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/44895370323596554080

碩士 === 國立高雄大學 === 電機工程學系碩士班 === 100 === We demonstrated the fiber Bragg grating interrogation system, which presents the measurements of a strain variation in time domain and frequency domain. But we want to improve the distance of the measurement by adding the mode-locked system, which modulated by the eletro-optic modulator can generate the high peak intensity of the ultra short pulse. This paper will demonstrate the new structure of the circular fiber Bragg grating interrogation system by fiber ring laser mode-locked signal. And we will show the advantage of the new system by the measurement of the frequency domain.