Ri-zhao LIU, Ming CHEN, Jia-jin ZHENG, Li LIU, Yong-gang ZHU, Huan-quan CHEN, Wei WEI. Study on Preparation and Properties of High Temperature Regenerated Fiber Bragg Gratings[J]. Acta Photonica Sinica, 2020, 49(7): 706001
- Acta Photonica Sinica
- Vol. 49, Issue 7, 706001 (2020)
Fig. 1. Thermal regeneration of fiber Bragg grating and high temperature reflectance spectrum real-time test device
Fig. 2. Variation of reflection intensity during annealing
Fig. 3. RFBG (920℃ in air 2 h) spectral characteristics and high temperature resistance
Fig. 4. High temperature resistance test
Fig. 5. Effects of different annealing temperatures on the axial stress of RFBG
Fig. 6. Effects of different cooling rates on the axial stress of RFBG
Fig. 7. Effects of different annealing atmospheres on the axial stress of RFBG
Fig. 8. XPS spectra of three samples
Fig. 9. Si 2p peak of three samples
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Table 1. The content of SiO2, Si2O3 in the sample after high temperature annealing
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