Dispersion manipulation in optical coherence tomography with Fourier-domain optical delay line

Avni Ceyhun Akcay; Kye Lee; Jannick P. Rolland

doi:10.1117/12.589295

13 April 2005 Dispersion manipulation in optical coherence tomography with Fourier-domain optical delay line

Avni Ceyhun Akcay, Kye Lee, Jannick P. Rolland

Proceedings Volume 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX; (2005) https://doi.org/10.1117/12.589295
Event: SPIE BiOS, 2005, San Jose, CA, United States

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.

Citation Download Citation

Avni Ceyhun Akcay, Kye Lee, and 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); https://doi.org/10.1117/12.589295

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