Dual beam heterodyne Fourier domain optical coherence tomography
Dual beam heterodyne Fourier domain optical coherence tomography
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DOI：
10.1364/oe.15.009254
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发表时间：
2007-07-23
期刊：
影响因子：
3.8
通讯作者：
Leitgeb, Rainer A.
中科院分区：
文献类型：
--
作者：
Bachmann, Adrian H.;Michaely, Roland;Leitgeb, Rainer A.
我们报告了一种新的方法相结合的消色差复杂FDOCT信号重建与一个共同的路径和双光束配置。复信号重构允许解决傅立叶变换的复模糊性，并将可实现的深度范围增强两倍。双光束结构具有共路FDOCT的高相位稳定性。这对于正确的复杂信号重建是重要的，并且在与手持式探头的组合中特别有用，例如在内窥镜检查和导管应用中。所提出的方法的优点是选择任意定位的样品臂中的接口作为参考的灵活性，以及补偿色散的可能性。文中给出了该方法和初步实验结果，并讨论了它的信噪比和动态范围。(C)2007年，美国光学学会。
We report on a novel method combining achromatic complex FDOCT signal reconstruction with a common path and dual beam configuration. The complex signal reconstruction allows resolving the complex ambiguity of the Fourier transform and to enhance the achievable depth range by a factor of two. The dual beam configuration shares the property of high phase stability with common path FDOCT. This is of importance for a proper complex signal reconstruction and is in particular useful in combination with handheld probes such as in endoscopy and catheter applications. The advantage of the presented approach is the flexibility to choose arbitrarily positioned interfaces in the sample arm as reference together with the possibility to compensate for dispersion. The method and first experimental results are presented and its properties concerning SNR and dynamic range are discussed. (C) 2007 Optical Society of America.