Fourier domain optical coherence tomography with ultralong depth range

The depth ranges of typical implementations of Fourier domain optical coherence tomography （FDOCT）, including spectral domain OCT （SDOCT） and swept source OCT （SSOCT）, are limited to several millimeters. To extend the depth range of current OCT systems, two novel systems with ultralong depth range w...

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Bibliographic Details
Published inFrontiers of Optoelectronics (Online) Vol. 8; no. 2; pp. 163 - 169
Main Authors Ding, Zhihua, Shen, Yi, Bao, Wen, Li, Peng
Format Journal Article
LanguageEnglish
Published Beijing Higher Education Press 01.06.2015
Subjects
Biomedical Engineering and Bioengineering
CT系统
Electrical Engineering
Engineering
OCT
Physics
Research Article
傅里叶
光学相干
典型应用
断层扫描
深度分辨率
swept source
parallel imaging
orthogonal dispersion
optical coherence tomography (OCT)
virtually-imaged phased array (VIPA)
dimensional metrology
light recirculation
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Summary:The depth ranges of typical implementations of Fourier domain optical coherence tomography （FDOCT）, including spectral domain OCT （SDOCT） and swept source OCT （SSOCT）, are limited to several millimeters. To extend the depth range of current OCT systems, two novel systems with ultralong depth range were developed in this study. One is the orthogonal dispersive SDOCT （OD-SDOCT）, and the other is the recirculated swept source （R-SS） interferometer/OCT. No compromise between depth range and depth resolution is required in both systems. The developed OD-SDOCT system realized the longest depth range （over 100 mm） ever achieved by SDOCT, which is ready to be modified for depth-encoded parallel imaging on multiple sites. The developed R-SS interferometer achieved submicron precision within a depth range of 30mm, holding potential in real-time contact-free on-axis metrology of complex optical sys- tems.
Bibliography:The depth ranges of typical implementations of Fourier domain optical coherence tomography （FDOCT）, including spectral domain OCT （SDOCT） and swept source OCT （SSOCT）, are limited to several millimeters. To extend the depth range of current OCT systems, two novel systems with ultralong depth range were developed in this study. One is the orthogonal dispersive SDOCT （OD-SDOCT）, and the other is the recirculated swept source （R-SS） interferometer/OCT. No compromise between depth range and depth resolution is required in both systems. The developed OD-SDOCT system realized the longest depth range （over 100 mm） ever achieved by SDOCT, which is ready to be modified for depth-encoded parallel imaging on multiple sites. The developed R-SS interferometer achieved submicron precision within a depth range of 30mm, holding potential in real-time contact-free on-axis metrology of complex optical sys- tems.
optical coherence tomography （OCT）, vir-tually-imaged phased array （VIPA）, orthogonal dispersion,swept source, light recirculation, parallel imaging, dimen-sional metrology
11-5738/TN
ISSN:2095-2759
2095-2767
DOI:10.1007/s12200-015-0463-5