Resolving the complex conjugate ambiguity in Fourier-domain OCT by harmonic lock-in detection of the spectral interferogram

被引：33
作者：
Vakhtin, AB [1 ]
Peterson, KA [1 ]
Kane, DJ [1 ]
机构：
[1] SW Sci Inc, Santa Fe, NM 87505 USA
来源：
OPTICS LETTERS | 2006年 / 31卷 / 09期
关键词：
D O I：
10.1364/OL.31.001271
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (c) 2006 Optical Society of America.
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页码：1271 / 1273
页数：3
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