Fig. 3: Noise-free spectrum reconstruction and noise analysis. | Nature Communications

Fig. 3: Noise-free spectrum reconstruction and noise analysis.

From: Denoising-autoencoder-facilitated MEMS computational spectrometer with enhanced resolution on a silicon photonic chip

Fig. 3

a Reconstruction of dual-wavelength spectra with different wavelength spacings under the noise-free condition. b Zoom-in view of the input and the reconstructed spectra with 0.2 nm spacing. c Zoom-in view of the input and the reconstructed spectra with 0.3 nm spacing. d Thermal noise displacement and shot noise displacement as functions of the applied bias voltage. e Distribution of SNR magnitudes. f Distribution of the resolution for spectrum reconstruction under an SNR of 30 dB.

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