Optimization method for spectrum reconstruction of on-chip spectrometer

• Main Authors: XIN MINGJU, DENG SHIJIE
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: COLORIMETRY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

The invention discloses an optimization method for spectrum reconstruction of an on-chip spectrometer. The method comprises the following steps: establishing a measurement system of a photodiode spectral response function; performing stability analysis on a matrix in the spectral response function to obtain a condition number of the matrix; changing a bias voltage value selected when the spectral response function is measured and constructed, and constructing a plurality of groups of different spectral response function matrixes; and selecting a spectral response matrix with the best stability for reconstructing an unknown spectrum. According to the optimization method for spectrum reconstruction of the on-chip spectrometer, the stability of a reconstruction function can be improved, the accuracy and robustness of the spectrometer are improved, and the on-chip spectrometer can be better applied to the fields of biomedicine, military reconnaissance, forensic evidence obtaining and the like. 本发明公开了一种片上光谱仪光谱重构的优