Resolution improvement in optical coherence tomography by optimal synthesis of light-emitting diodes

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Abstract
We present a new approach to improving the longitudinal resolution of optical coherence tomography by optimal synthesis of several LED’s. The search for an optimal synthesis of several low-coherence sources involves solution of an inverse problem, and an optimization algorithm is introduced that is used to arrange the parameters of light sources to effectively reduce the width of the center peak and inhibit the sidelobes simultaneously. Good coincidence between the experimental result and theoretical expectation is found.