Balanced detection spectral domain optical coherence tomography with a multiline single camera for signal-to-noise ratio enhancement

被引：11

作者：

Kuo, Wen-Chuan ^{[1
,2
]}

Lai, Yune-Shee ^{[3
]}

Lai, Chih-Ming ^{[4
]}

Huang, Yi-Shiang ^{[1
,3
]}

机构：

[1] Natl Yang Ming Univ, Inst Biophoton, Taipei, Taiwan

[2] Natl Yang Ming Univ, Biophoton & Mol Imaging Res Ctr BMIRC, Taipei 112, Taiwan

[3] Natl Taiwan Normal Univ, Inst Electroopt Sci & Technol, Taipei 106, Taiwan

[4] Ming Chuan Univ, Dept Elect Engn, Tao Yuan 333, Taiwan

来源：

APPLIED OPTICS | 2012年 / 51卷 / 24期

关键词：

INTERFEROMETRY; LASER;

D O I：

10.1364/AO.51.005936

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this study, the use and advantages of balanced detection (BD) in spectral domain optical coherence tomography (SD-OCT) are demonstrated. A-scans are calculated as a combination of two phase-opposed interferometric spectra acquired simultaneously by using a multiline single camera spectrometer. Not only does this system suppress artifacts due to autocorrelation, but also the signal of interest is increased by a factor of 2 as experimentally verified. Our BD-based SD-OCT gives a signal-to-noise ratio improvement of 8-14 dB for the peak within 1 mm compared to standard SD-OCT using a single detection scheme. This method is validated by experimental measurement of a glass plate. c 2012 Optical Society of America

引用

页码：5936 / 5940

页数：5

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