Dispersion in spectral domain optical coherence tomography (SD OCT) system cause a degradation of point spread function (peak broadening) after FFT of the spectrum with the increase of the optical path distance between an object and reference arm. Different sources of dispersion and methods for the compensation are shown.

Introduction: Coherent detection combined with digital signal processing is emerging as one of the most promising techniques for longhaul fibre transmission. One of the benefits of coherent detection is that the complete information of the optical field including amplitude and phase can be obtained, which enables the compensation of dispersion and nonlinearity by digital backward propagation [1...

In optical communication systems, the technique of alternating dispersion is commonly used as a way to counteract the dispersive pulse broadening. The main limitations, in terms of bit-rate, then come from the fiber Kerr nonlinearity acting through self-phase modulation and four-wave mixing [1]. The recently introduced method of " dispersion management ", where the dispersion compensation is on...