Optically buffered Jones-matrix-based multifunctional optical coherence tomography with polarization mode dispersion correction.

Optically buffered Jones-matrix-based multifunctional optical coherence tomography with polarization mode dispersion correction.
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具有偏振模式色散校正功能的基于光缓冲琼斯矩阵的多功能光学相干断层扫描。

DOI:
10.1364/boe.6.000225
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发表时间:
2015
影响因子:
3.4
通讯作者:
Y. Yasuno
Y. Yasuno
中科院分区:
医学2区
文献类型:
--
作者:
Youngjoo Hong;S. Makita;S. Sugiyama;Y. Yasuno

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偏振模色散(PMD)影响了基于琼斯矩阵的偏振敏感多功能光学相干层析成像(JM-OCT)的性能。对于光缓冲的JM-OCT来说,这个问题尤其严重,因为光缓冲模块中的长光纤会产生大量的偏振模色散。本文旨在提出一种校正JM-OCT中偏振模色散影响的方法。我们首先对JM-OCT中的偏振模色散进行数学建模,然后推导出一种校正偏振模色散的方法。这种方法是简单的硬件修改和随后的软件校正的组合。硬件方面的改进是引入了两个偏振器,将偏振模色散变换为琼斯矩阵的全局复调制。随后,软件校正解调全局调制。该方法通过实验获得的镜像样本的点扩散函数以及人体视网膜的活体测量进行了验证。
Polarization mode dispersion (PMD) degrades the performance of Jones-matrix-based polarization-sensitive multifunctional optical coherence tomography (JM-OCT). The problem is specially acute for optically buffered JM-OCT, because the long fiber in the optical buffering module induces a large amount of PMD. This paper aims at presenting a method to correct the effect of PMD in JM-OCT. We first mathematically model the PMD in JM-OCT and then derive a method to correct the PMD. This method is a combination of simple hardware modification and subsequent software correction. The hardware modification is introduction of two polarizers which transform the PMD into global complex modulation of Jones matrix. Subsequently, the software correction demodulates the global modulation. The method is validated with an experimentally obtained point spread function with a mirror sample, as well as by in vivo measurement of a human retina.
DOI: 10.1364/boe.2.001539
发表时间: 2011-06-01
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