Patent ID: 11920983
Assignee: XIAMEN UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. An optical spectrometer, comprising:
one or more processors;
a spatial light modulator in communication with at least one of the one or more processors; and
a detector for detecting an optical signal from input light modulated by the spatial light modulator,
wherein the one or more processors are configured to:
generating a sequence of 2D masks along a time dimension, wherein each 2D mask is arranged with a wavelength dimension and a coefficient dimension, and each 2D mask in the sequence of 2D masks comprises a plurality of columns or rows, each column corresponding to a different coefficient and having different respective sequency values along the time dimension, or each row corresponding to a different wavelength and having different respective sequency values along the time dimension;
receiving an optical signal from light modulated by the sequence of 2D masks, wherein the coefficient in each column or the wavelength in each row is encoded in the time dimension with a different sequency value;
detecting all coefficients or all wavelengths simultaneously; and
reconstructing a spectrum to be detected by analyzing the optical signal.