Multi-channel time domain spectroscopic optical coherence tomography system

Alexander Meadway; Seyed Hamid Hosseiny Darbrazi; Ramona Cernat; George Dobre; Adrian Gh. Podoleanu; Richard B. Rosen M.D.

doi:10.1117/12.816608

30 December 2008 Multi-channel time domain spectroscopic optical coherence tomography system

Alexander Meadway, Seyed Hamid Hosseiny Darbrazi, Ramona Cernat, George Dobre, Adrian Gh. Podoleanu, Richard B. Rosen M.D.

Author Affiliations +

Proceedings Volume 7139, 1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics; 713909 (2008) https://doi.org/10.1117/12.816608
Event: 1st Canterbury Workshop and School in Optical Coherence Tomography and Adaptive Optics, 2008, Canterbury, United Kingdom

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.

Citation Download Citation

Alexander Meadway, Seyed Hamid Hosseiny Darbrazi, Ramona Cernat, George Dobre, Adrian Gh. Podoleanu, and Richard B. Rosen M.D. "Multi-channel time domain spectroscopic optical coherence tomography system", Proc. SPIE 7139, 1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics, 713909 (30 December 2008); https://doi.org/10.1117/12.816608

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