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Adaptive optics assisted Fourier domain OCT with balanced detection

Meadway, A. and Bradu, A. and Hathaway, M. and Van Der Jeught, S. and Rosen, R.B. and Podoleanu, A.Gh. (2011) Adaptive optics assisted Fourier domain OCT with balanced detection. In: Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV. Proceedings of SPIE . SPIE. ISBN 978-0-8194-8426-0. (doi:10.1117/12.874805) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1117/12.874805

Abstract

Two factors are of importance to optical coherence tomography (OCT), resolution and sensitivity. Adaptive optics improves the resolution of a system by correcting for aberrations causing distortions in the wave-front. Balanced detection has been used in time domain OCT systems by removing excess photon noise, however it has not been used in Fourier domain systems, as the cameras used in the spectrometers saturated before excess photon noise becomes a problem. Advances in camera technology mean that this is no longer the case and balanced detection can now be used to improve the signal to noise ratio in a Fourier domain (FD) OCT system. An FD-OCT system, enhanced with adaptive optics, is presented and is used to show the improvement that balanced detection can provide. The signal to noise ratios of single camera detection and balanced detection are assessed and in-vivo retinal images are acquired to demonstrate better image quality when using balance detection.

Item Type: Book section
DOI/Identification number: 10.1117/12.874805
Uncontrolled keywords: adaptive optics; balanced detection; eye; Fourier domain; imaging; interferometry; noise; OCT; Optical coherence tomography
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 16 Jul 2015 14:14 UTC
Last Modified: 26 Jul 2019 10:53 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49416 (The current URI for this page, for reference purposes)
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