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Proceedings Paper

In vitro retinal imaging with full field swept source optical coherence tomography
Author(s): James Fergusson; Boris Považay; Bernd Hofer; Wolfgang Drexler
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Paper Abstract

Weakly scattering tree shrew retina has been imaged in vitro with full field swept source optical coherence tomography, visualising multiple intraretinal layers. The system utilises a 50nm bandwidth Superlum SLD, to acheive ~8μm of axial resolution and 4μm of transversal resolution. Volumetric images of retinal tissue with dimensions of 1248x936x678μm (horizontal by vertical by axial) were recorded in two second (equivalent of 153,600 A-scans per second) with a measured signal to noise ratio of 75dB. From the 5mW of SLD optical power available, 720μW illuminates the sample, giving a power per pixel of 4.6nW, ten times less power per pixel then standard FDOCT systems. After upgrading the camera and redesigning the optical beam path, 82dB of SNR was realised.

Paper Details

Date Published: 20 February 2010
PDF: 6 pages
Proc. SPIE 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV, 75540I (20 February 2010); doi: 10.1117/12.843254
Show Author Affiliations
James Fergusson, Cardiff Univ. (United Kingdom)
Boris Považay, Medical Univ. of Vienna (Austria)
Bernd Hofer, Medical Univ. of Vienna (Austria)
Wolfgang Drexler, Medical Univ. of Vienna (Austria)


Published in SPIE Proceedings Vol. 7554:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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