Influence of phase drift on optical coherence tomography using a CCD camera-based heterodyne detection technique

被引：2

作者：

Ajub M. ^{[1
,2
]}

Chan K.P. ^{[1
,2
]}

Tanno N. ^{[1
,2
]}

机构：

[1] Japan Science and Technology Corporation, Regional Joint Research Project of Yamagata Prefecture, Yamagata, Yamagata 990-2473

[2] Graduate Program of Human Sensing and Functional Sensor Engineering, Yamagata University, Yonezawa, Yamagata 992-8510

来源：

Optical Review | 2002年 / 9卷 / 4期

关键词：

Frequency synchronous detection; Interferometric imaging; Optical coherence tomography; Phase drift; Two-dimensional heterodyne detection;

D O I：

10.1007/s10043-002-0170-5

中图分类号：

学科分类号：

摘要：

The performance of a two-dimensional heterodyne detection technique in optical coherence tomography (OCT) was studied. This technique, which is based on the frequency synchronous detection method, enables the use of an imager such as a charge coupled device (CCD) camera as a heterodyne sensor array, so that horizontal cross-sectional image can be acquired in real time without lateral scanning. OCT measurements of scattering media including a biological object were demonstrated. To evaluate the influence of phase fluctuations on the present technique, we measured and analyzed the statistical relative-standard-deviation of heterodyne signal intensity as a function of the random phase shifts between two consecutive CCD frames. Practical limitations in the signal stability and possible solutions are discussed.

引用

页码：170 / 175

页数：5

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