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

被引：10
|
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
收藏
页码：5936 / 5940
页数：5
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