13 April 2005 Dispersion manipulation in optical coherence tomography with Fourier-domain optical delay line
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Abstract
In the last decade, Fourier-domain optical delay lines (FD-ODL) based on pulse shaping technology have emerged as a practical device for high-speed scanning and dispersion compensation in imaging interferometry such as optical coherence tomography(OCT). In this study, we investigate the effect of first- and second-order dispersion on the photocurrent signal associated with a fiber-optic OCT system implemented using a superluminescent diode centered at 950nm±35nm, an FD-ODL, and a mirror and a layered LiTaO3 which owns suitable dispersion characteristics to model a skin specimen. We present a practically useful method associated with FD-ODL to minimize the effect of dispersion through the OCT system and the specimen combined, and quantify the results using two general metrics for axial resolution.
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Avni Ceyhun Akcay, Avni Ceyhun Akcay, Kye Lee, Kye Lee, Jannick P. Rolland, Jannick P. Rolland, "Dispersion manipulation in optical coherence tomography with Fourier-domain optical delay line", Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, (13 April 2005); doi: 10.1117/12.589295; https://doi.org/10.1117/12.589295
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