400 MHz ultrafast optical coherence tomography

Dongmei Huang; Feng Li; Zijian He; Zihao Cheng; Chao Shang; Alex Wai

doi:10.1364/OL.409607

400 MHz ultrafast optical coherence tomography

Dongmei Huang, Feng Li^*, Zijian He, Zihao Cheng, Chao Shang, Alex Wai

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

22 Citations (Scopus)

Abstract

An ultrafast time-stretched swept source with a sweep rate of 400 MHz is demonstrated based on the buffering of a 100 MHz femtosecond laser pulse train. To the best of our knowledge, this is the highest sweep rate of swept sources for optical coherence tomography (OCT) that has been reported. With a 10 dB sweep range of ∼100 nm, an axial resolution of 19 µm is obtained in the OCT. OCT imaging of high-speed rotating disks is demonstrated. A composite complex apodization method is proposed and demonstrated to enhance the signal to noise ratio in the OCT imaging.

Original language	English
Pages (from-to)	6675-6678
Number of pages	4
Journal	Optics Letters
Volume	45
Issue number	24
DOIs	https://doi.org/10.1364/OL.409607
Publication status	Published - 9 Dec 2020

Scopus Subject Areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.409607

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title = "400 MHz ultrafast optical coherence tomography",

abstract = "An ultrafast time-stretched swept source with a sweep rate of 400 MHz is demonstrated based on the buffering of a 100 MHz femtosecond laser pulse train. To the best of our knowledge, this is the highest sweep rate of swept sources for optical coherence tomography (OCT) that has been reported. With a 10 dB sweep range of ∼100 nm, an axial resolution of 19 µm is obtained in the OCT. OCT imaging of high-speed rotating disks is demonstrated. A composite complex apodization method is proposed and demonstrated to enhance the signal to noise ratio in the OCT imaging.",

author = "Dongmei Huang and Feng Li and Zijian He and Zihao Cheng and Chao Shang and Alex Wai",

note = "Funding Information: Science, Technology and Innovation Commission of Shenzhen Municipality (SGDX2019081623060558); Research Grants Council, University Grants Committee of Hong Kong SAR (PolyU152241/18E); The Hong Kong Polytechnic University (1-BBAJ, 1-ZVGB). Publisher Copyright: {\textcopyright} 2020 Optical Society of America",

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T1 - 400 MHz ultrafast optical coherence tomography

AU - Huang, Dongmei

AU - Li, Feng

AU - He, Zijian

AU - Cheng, Zihao

AU - Shang, Chao

AU - Wai, Alex

N1 - Funding Information: Science, Technology and Innovation Commission of Shenzhen Municipality (SGDX2019081623060558); Research Grants Council, University Grants Committee of Hong Kong SAR (PolyU152241/18E); The Hong Kong Polytechnic University (1-BBAJ, 1-ZVGB). Publisher Copyright: © 2020 Optical Society of America

PY - 2020/12/9

Y1 - 2020/12/9

N2 - An ultrafast time-stretched swept source with a sweep rate of 400 MHz is demonstrated based on the buffering of a 100 MHz femtosecond laser pulse train. To the best of our knowledge, this is the highest sweep rate of swept sources for optical coherence tomography (OCT) that has been reported. With a 10 dB sweep range of ∼100 nm, an axial resolution of 19 µm is obtained in the OCT. OCT imaging of high-speed rotating disks is demonstrated. A composite complex apodization method is proposed and demonstrated to enhance the signal to noise ratio in the OCT imaging.

AB - An ultrafast time-stretched swept source with a sweep rate of 400 MHz is demonstrated based on the buffering of a 100 MHz femtosecond laser pulse train. To the best of our knowledge, this is the highest sweep rate of swept sources for optical coherence tomography (OCT) that has been reported. With a 10 dB sweep range of ∼100 nm, an axial resolution of 19 µm is obtained in the OCT. OCT imaging of high-speed rotating disks is demonstrated. A composite complex apodization method is proposed and demonstrated to enhance the signal to noise ratio in the OCT imaging.

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JO - Optics Letters

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400 MHz ultrafast optical coherence tomography

Abstract

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