Resolving the complex conjugate ambiguity in Fourier-domain OCT by harmonic lock-in detection of the spectral interferogram.
Resolving the complex conjugate ambiguity in Fourier-domain OCT by harmonic lock-in detection of the spectral interferogram.
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DOI：
10.1364/ol.31.001271
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发表时间：
2006-05
期刊：
影响因子：
3.6
通讯作者：
A. Vakhtin;K. Peterson;D. Kane
中科院分区：
文献类型：
--
作者：
A. Vakhtin;K. Peterson;D. Kane
描述了一种解决傅里叶域光学相干断层扫描（Fourier - domain OCT）中复共轭模糊性的方法。通过同时采集相位调制干涉图交流分量的一次谐波和二次谐波来获得复差分光谱干涉图。这些谐波分别代表干涉图的虚部和实部。发现复共轭抑制比至少为45分贝，并且受背景噪声限制。
A method of resolving the complex conjugate ambiguity in Fourier-domain OCT is described. The complex differential spectral interferogram is obtained by simultaneous acquisition of the first and second harmonics of the ac component of the phase-modulated interferogram. The harmonics represent the imaginary and real parts of the interferogram, respectively. The complex conjugate rejection ratio is found to be at least 45 dB and is limited by background noise.