Enhanced Strain Measurement Sensitivity with Gold Nanoparticle-Doped Distributed Optical Fibre Sensing

Figure 5

The simulated results of strain acquisition. (a-1–a-3) The errors between the spectral shift obtained and the theoretical results for spectral ranges of 10 nm, 20 nm, and 40 nm, respectively. (b and c) The standard deviations of the spectral shift for spectral ranges of 10 nm, 20 nm, and 40 nm, respectively. The numbers (−1, −2, and −3) for figures (b–d) correspond to results under noise levels of 10%, 30%, and 50%, respectively [45].