多通道时域光谱光学相干层析成像系统

Canterbury Workshop and School in Optical Coherence Tomography and Adaptive Optics Pub Date : 2008-12-30 DOI:10.1117/12.816608

A. Meadway, Seyed Hamid Hosseiny Darbrazi, R. Cernat, G. Dobre, A. Podoleanu, R. Rosen

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引用次数: 3

摘要

对光学相干层析成像系统光探测阶段基于7个光谱窗口的检测方法进行了测试。我们从光谱光学相干层析成像和提高信噪比两个方面探讨了它的应用。在光探测单元中使用衍射光栅来衍射16个光电探测器阵列上的光。目前，该阵列仅通过合并两个相邻的光电探测器来配置7个通道。研究了提高信噪比的方法。光谱分析的初步结果将显示为涂料层的b扫描OCT成像。该项目的最终目的是对视网膜进行光谱分析。

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Multi-channel time domain spectroscopic optical coherence tomography system

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.

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Canterbury Workshop and School in Optical Coherence Tomography and Adaptive Optics

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