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Journal of Biomedical Optics

Phase and amplitude correction in polygon tunable laser-based optical coherence tomography
Author(s): Jinyu Fan; Pinghe Wang; Feng Gao; Zhehao Hu; Wen Kong; Haiwen Li; Guohua Shi
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Paper Abstract

Phase instability is a serious problem in swept-source optical coherence tomography (OCT) with polygon tunable lasers; however, these devices have additional issues. We found that polygon tunable lasers also have fluctuations in output power and sweep range: the former creates artifacts that may impair the recognition of sample information, and the latter reduces the interference signal utilization during phase correction. We demonstrate a method that uses the calibration signal to quantify these problems and improve system stability and image quality. The proposed amplitude correction and phase correction methods are used to eliminate vertical artifacts and improve the resolution of OCT flow and intensity images while reducing the phase error.

Paper Details

Date Published: 23 September 2017
PDF: 9 pages
J. Biomed. Opt. 22(9) 096013 doi: 10.1117/1.JBO.22.9.096013
Published in: Journal of Biomedical Optics Volume 22, Issue 9
Show Author Affiliations
Jinyu Fan, Chinese Academy of Sciences (China)
Suzhou Institute of Biomedical Engineering and Technology (China)
Jiangsu Key Lab. of Medical Optics (China)
Pinghe Wang, Univ. of Electronic Science and Technology of China (China)
School of Optoelectronic Information (China)
Feng Gao, Chinese Academy of Sciences (China)
Suzhou Institute of Biomedical Engineering and Technology (China)
Jiangsu Key Lab. of Medical Optics (China)
Zhehao Hu, Zhejiang Univ. (China)
College of Optical Science and Engineering (China)
Wen Kong, China Jiliang Univ. (China)
College of Optical and Electronic Technology (China)
Haiwen Li, Chinese Academy of Sciences, Suzhou Institute of Biomedical Engineering and Technology, Jiangsu Key (China)
Guohua Shi, Chinese Academy of Sciences, Suzhou Institute of Biomedical Engineering and Technology, Jiangsu Key (China)
University of Electronic Science and Technology of China, School of Optoelectronic Information, Chen (China)


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