Lixin Zhang, Yongqian Li, Qi An, Xiaojuan Li. Temperature Sensing Technology Based on Rayleigh Brillouin Optical Time Domain Analysis with Pulse Coding[J]. Acta Optica Sinica, 2017, 37(11): 1106004
- Acta Optica Sinica
- Vol. 37, Issue 11, 1106004 (2017)
Fig. 1. Principle diagram of Rayleigh BOTDA temperature sensing system
Fig. 2. Experimental system for Rayleigh BOTDA based temperature sensing
Fig. 3. Brillouin frequency shift versus temperature
Fig. 4. Brillouin frequency shift distribution along heated section
Fig. 5. (a) Brillouin frequency shift and (b) power distribution along heated section
Fig. 6. Brillouin gain spectrum at position of 820 m of fiber
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