We previously demonstrated, with both theoretical and experimental studies, the dynamic range limitation with spectral domain optical coherence tomography (OCT) relative to time domain OCT. A significant portion of this limitation was due to the difference of analog/digital conversion. In this paper, a new method of true logarithmic amplification is discussed theoretically and tested experimentally to increase the dynamic range of a swept source OCT. With the current experimental setup, an increase of the dynamic range by about 6 dB was obtained.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10766111 | PMC |
| http://dx.doi.org/10.1364/JOSAA.27.000404 | DOI Listing |
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