Device for optical coherence tomography

A device for optical coherence tomography (OCT), comprising:

• a signal detection device designed to detect an interference signal (G(ω)) for an object to be imaged in an optical frequency range (ω), and
• a computer arrangement designed to calculate, for each depth of a plurality of different deaths (z1, z2) of the object, association instructions (M1, M2) that are adapted for the particular depth (z1, z2) to the dispersion caused by the object and to store the instructions (M1, M2) in a memory,
• the computer arrangement is further designed to determine:
• a plurality of intermediate signals (G1(k), G2(k)) in a spatial frequency range (k) from the interference signal (G(ω)), whereby each of the intermediate signals (G1(k), G2(k)) is dispersion-compensated for the different depths (z1, z2) of the object, each of the intermediate signals (G1(k), G2(k)) determined starting from the interference signal (G(ω)) using the corresponding association instructions (M1, M2),
• a locally resolved image signal (FFT1, FFT2) for each of the intermediate signals (G1(k), G2(k)) by applying a Fourier transformation to the particular intermediate signal (G1(k), G2(k)), and
• a tomography signal (G(z)) from the image signals (FFT1, FFT2).