Haihu YU, Yue MA, Wenjing GAO, Hao BI, Huiyong GUO, Yu ZHENG. Fabrication and Temperature Sensing Characteristics of Dense Apodized Fiber Bragg Grating Array[J]. Acta Photonica Sinica, 2021, 50(7): 24
- Acta Photonica Sinica
- Vol. 50, Issue 7, 24 (2021)
Fig. 1. The principle diagram of the OWTDR technology
Fig. 2. The variation of the reflected spectra in the dense grating array
Fig. 3. The variation of the induced index change of the Bragg grating along the fiber axis
Fig. 4. The intensity distribution curves and simulated reflection spectra with different G
Fig. 5. The reflected spectra of single grating and time domain reflection signal of the whole array
Fig. 6. Schematic diagram of the AFBGs array in the temperature experiment
Fig. 7. Variation of the center wavelength in the array when AFBGs were heated
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