Direct electronic linearization for camera based spectral domain optical coherence tomography

Andrew Payne; Adrian Gh. Podoleanu

doi:10.1117/12.2006337

20 March 2013 Direct electronic linearization for camera based spectral domain optical coherence tomography

Andrew Payne, Adrian Gh. Podoleanu

Proceedings Volume 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII; 85712D (2013) https://doi.org/10.1117/12.2006337
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

An electronic method of k-space linearization for an analogue camera for use in optical coherence tomography is demonstrated. The method applies a chirp to the data transfer clock signal of the camera in order to temporally compensate for diffraction that is non-linear in wavenumber. The optimum parameters are obtained experimentally and theoretically and are shown to be in good accordance. Close to maximum measurable axial range, by applying this method, we report a narrowing of the FWHM of the point spread function by a factor of 5.6 and improve its magnitude by 9.8 dB.

Citation Download Citation

Andrew Payne and Adrian Gh. Podoleanu "Direct electronic linearization for camera based spectral domain optical coherence tomography", Proc. SPIE 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII, 85712D (20 March 2013); https://doi.org/10.1117/12.2006337

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