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Updated: Jun 5, 2026

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
Published on: January 15, 2013
Influence and compensation of autocorrelation terms in depth-resolved spectroscopic Fourier-domain optical coherence
Patrick Steiner1, Christoph Meier, Volker M Koch
1Bern University of Applied Science, Optics and Photonics Laboratory, Quellgasse 21, Biel CH-2501, Switzerland. patrick.steiner@bfh.ch
Abstract:
We demonstrate depth-resolved spectral absorption measurements in the wavelength range from 750 to 850 nm using a broadband light source consisting of three spectrally shifted superluminescent light-emitting diode modules and a low-cost spectrometer-based Fourier-domain optical coherence tomography system. We present the theoretical model and experimental verification of interferences between autocorrelation terms and the signal carrying cross-correlation terms, strongly affecting the absorption measurements. A simple background subtraction, minimizing the artifacts caused by the interferences of autocorrelation and cross-correlation terms, is presented.
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