Multiple Parameters Optical Sensing Using Fiber Ring Laser Based on Fiber Bragg Gratings and 1064 nm Semiconductor Optical Amplifier*
Liaw Shien-Kuei1, Li Dong-Chang1, Lee Hsin-Che1, Huang Yi-Zhi1, Shin Chow-Shing2, Lee Yin-Wen3
1Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
2Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
3Department of Electro-Optical Engineering, National Taipei University of Science and Technology, Taipei, Taiwan
Email: peterskliaw@gmail.com
Поступила в редакцию: 16 августа 2019 г.
Выставление онлайн: 20 января 2020 г.
In this paper, a semiconductor optical amplifier (SOA) based on 1064 nm fiber ring laser with 63.56 dB optical signal-to-noise ratio (OSNR) is demonstrated. The stable performance is measured for 6 hours with lasing peak variation of ≤ ±0.115 dB and wavelength variation of ≤ ±0.006 nm. Combining the fiber ring laser with fiber Bragg gratings (FBGs), the SOA based fiber ring laser is applied to sense stretch, squeeze, and temperature variation. The results show high linearity, which is suitable for interpolation method's prediction and evaluation. A large dynamic range of up to 10 km is also demonstrated for remote sensing application. Keywords: optical amplifier, fiber ring laser, fiber Bragg gratings.
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