Fig. 5: Test of CAED effectiveness for spectrum reconstruction. | Nature Communications

Fig. 5: Test of CAED effectiveness for spectrum reconstruction.

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

Fig. 5

Distribution of reconstruction resolution with or without denoising under different SNR levels of (a) 35 dB, (b) 30 dB, and (c) 25 dB. Reconstruction of dual-wavelength spectrum with or without denoising at different wavelength spacings of (d) 1.2 nm, (e) 1.1 nm, (f) 0.4 nm, and (g) 0.3 nm. h–j Reconstruction of a diverse range of incident spectra: (h) triple-wavelength spectrum, (i) broadband spectrum, and (j) mixed broadband/narrowband spectrum. All the reconstructions are performed throughout 3001 wavelength channels. For clarity, all the relative errors ε are calculated within the displayed wavelength ranges.

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