Spectroscopic apparatus comprising a tunable light source

A spectroscopic apparatus (500) comprises: - an illuminating unit (110) to generate light pulses (B2) at selectable wavelengths, - a control unit (CNT1) to control operation of the illuminating unit (110), wherein the illuminating unit (110) comprises: - a broadband light source (LS1) to generate broadband light pulses (B1), - a tunable Fabry-Perot interferometer (FPI1) to form narrowband light pulses (B2) by filtering the broadband light pulses (B1), wherein the control unit (CNT1) is arranged to: - modulate the mirror gap (dGAP) of the Fabry-Perot interferometer (FPI1) according to a periodic modulating waveform (SGAP(t)), - trigger a first broadband light pulse (B1) at a first trigger time (t1), so as to form a first narrowband light pulse (B2) at a first wavelength, - trigger a second broadband light pulse (B1) at a second trigger time (t2), so as to form a second narrowband light pulse (B2) at a second wavelength.

Patent family as of 14.7.2026
AU2024365867 AA, CA3307284 AA, CN122070465 A, EP4762331 A1, FI131631 B, FI20236191 A, IN202617053980 A, KR20260089557 A, US2026118174 AA, WO25088245 A1