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Proceedings Paper

Multi-channel time domain spectroscopic optical coherence tomography system
Author(s): Alexander Meadway; Seyed Hamid Hosseiny Darbrazi; Ramona Cernat; George Dobre; Adrian Gh. Podoleanu; Richard B. Rosen M.D.
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Paper Abstract

A detection method based on 7 spectral windows at the photodetection stage in an optical coherence tomography system was tested. We investigated its utility in two directions: spectroscopic optical coherence tomography and signal to noise ratio improvement. A diffraction grating was used in the photodetection unit to diffract light over a 16 photodetector array. Currently, this array has been configured to deliver 7 channels only by binning two adjacent photodetectors. The improvement of the signal to noise ratio has been investigated. Preliminary results of spectroscopy analysis which will be shown are B-scan OCT imaging of paint layers. The ultimate aim of the project is to perform spectroscopic analysis of the retina.

Paper Details

Date Published: 30 December 2008
PDF: 7 pages
Proc. SPIE 7139, 1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics, 713909 (30 December 2008); doi: 10.1117/12.816608
Show Author Affiliations
Alexander Meadway, Univ. of Kent (United Kingdom)
Seyed Hamid Hosseiny Darbrazi, Univ. of Kent (United Kingdom)
Ramona Cernat, Univ. of Kent (United Kingdom)
George Dobre, Univ. of Kent (United Kingdom)
Adrian Gh. Podoleanu, Univ. of Kent (United Kingdom)
Richard B. Rosen M.D., The New York Eye and Ear Infirmary (United States)

Published in SPIE Proceedings Vol. 7139:
1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics
Adrian Podoleanu, Editor(s)

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