We call OCT with speeds of more than 1.000.000 axial scans per second MHz-OCT. These unprecedented speeds require not only an extremely fast swept laser, such as our FDML products, but also rely on perfect synchronization, powerful data processing and other system technologies.
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Fourier-domain mode-locking (FDML) is a novel laser operation scheme. In FDML, the cavity round-trip time is synchronized to the wavelength-tunable filter driving signal. In this way, FDML overcomes the typical speed limitations of other wavelength-swept laser concepts.
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Optical coherence tomography (OCT) is a noncontact, three-dimensional imaging modality. Based on broadband light sources, interferometric detection, and confocal gating, OCT provides cross-sectional images with a resolution of a few microns.
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