abstract
- We performed numerical analysis on an integrated digital Fourier transform interferometer operating on a silicon-nitride platform. This device acquires Raman spectra through a switch-based digital Fourier transform spectrometer, employing a single optical power meter for detection. Using a standard regularized regression method, we successfully reconstructed a typical Raman skin spectrum in the range of 800 cm¿1 to 1800 cm¿1. Additionally, we varied the intensity of the Raman peak at 1125 cm¿1, corresponding to a characteristic glucose signature, and determined a minimal sensitivity threshold of 1P = 0.509 nW. © 2025 Optica Publishing Group.