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For the designed SIMRR sensor in Figure 1 (a), the simulated transmission spectra in the wavelength range of 1400–1600 nm at the length change of sensing arm waveguide l = −10 nm (a) without noises, (b) with SNR = 15 dB, (c) with SNR = 30 dB. (d) The root-mean-square error (RMSE) of the measurement results by the BP-ANN and the LOD (limit of detection) of single mode dissipative sensing versus the SNR value.
