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Article: Video-rate centimeter-range optical coherence tomography based on dual optical frequency combs by electro-optic modulators
Title | Video-rate centimeter-range optical coherence tomography based on dual optical frequency combs by electro-optic modulators |
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Authors | |
Issue Date | 2018 |
Publisher | Optical Society of America: Open Access Journals. The Journal's web site is located at http://www.opticsexpress.org |
Citation | Optics Express, 2018, v. 26 n. 19, p. 24928-24939 How to Cite? |
Abstract | Imaging speed and range are two important parameters for optical coherence tomography (OCT). A conventional video-rate centimeter-range OCT requires an optical source with hundreds of kHz repetition rate and needs the support of broadband detectors and electronics (>1 GHz). In this paper, a type of video-rate centimeter-range OCT system is proposed and demonstrated based on dual optical frequency combs by leveraging electro-optic modulators. The repetition rate difference between dual combs, i.e. the A-scan rate of dual-comb OCT, can be adjusted within 0~6 MHz. By down-converting the interference signal from optical domain to radio-frequency domain through dual comb beating, the down-converted bandwidth of the interference signal is less than 22.5 MHz which is at least two orders of magnitude lower than that in conventional OCT systems. A LabVIEW program is developed for video-rate operation, and the centimeter imaging depth is proved by using 10 pieces of 1-mm thick glass stacked as the sample. The effective beating bandwidth between two optical comb sources is 7 nm corresponding to ~108 comb lines, and the axial resolution of the dual-comb OCT is 158 µm. Dual optical frequency combs provide a promising solution to relax the detection bandwidth requirement in fast long-range OCT systems. |
Persistent Identifier | http://hdl.handle.net/10722/275021 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 0.998 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Kang, J | - |
dc.contributor.author | Feng, P | - |
dc.contributor.author | Li, B | - |
dc.contributor.author | Zhang, C | - |
dc.contributor.author | Wei, X | - |
dc.contributor.author | Lam, EYM | - |
dc.contributor.author | Tsia, KKM | - |
dc.contributor.author | Wong, KKY | - |
dc.date.accessioned | 2019-09-10T02:33:50Z | - |
dc.date.available | 2019-09-10T02:33:50Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Optics Express, 2018, v. 26 n. 19, p. 24928-24939 | - |
dc.identifier.issn | 1094-4087 | - |
dc.identifier.uri | http://hdl.handle.net/10722/275021 | - |
dc.description.abstract | Imaging speed and range are two important parameters for optical coherence tomography (OCT). A conventional video-rate centimeter-range OCT requires an optical source with hundreds of kHz repetition rate and needs the support of broadband detectors and electronics (>1 GHz). In this paper, a type of video-rate centimeter-range OCT system is proposed and demonstrated based on dual optical frequency combs by leveraging electro-optic modulators. The repetition rate difference between dual combs, i.e. the A-scan rate of dual-comb OCT, can be adjusted within 0~6 MHz. By down-converting the interference signal from optical domain to radio-frequency domain through dual comb beating, the down-converted bandwidth of the interference signal is less than 22.5 MHz which is at least two orders of magnitude lower than that in conventional OCT systems. A LabVIEW program is developed for video-rate operation, and the centimeter imaging depth is proved by using 10 pieces of 1-mm thick glass stacked as the sample. The effective beating bandwidth between two optical comb sources is 7 nm corresponding to ~108 comb lines, and the axial resolution of the dual-comb OCT is 158 µm. Dual optical frequency combs provide a promising solution to relax the detection bandwidth requirement in fast long-range OCT systems. | - |
dc.language | eng | - |
dc.publisher | Optical Society of America: Open Access Journals. The Journal's web site is located at http://www.opticsexpress.org | - |
dc.relation.ispartof | Optics Express | - |
dc.rights | Optics Express. Copyright © Optical Society of America: Open Access Journals. | - |
dc.rights | © XXXX [year] Optical Society of America]. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. | - |
dc.title | Video-rate centimeter-range optical coherence tomography based on dual optical frequency combs by electro-optic modulators | - |
dc.type | Article | - |
dc.identifier.email | Lam, EYM: elam@eee.hku.hk | - |
dc.identifier.email | Tsia, KKM: tsia@hku.hk | - |
dc.identifier.email | Wong, KKY: kywong@eee.hku.hk | - |
dc.identifier.authority | Lam, EYM=rp00131 | - |
dc.identifier.authority | Tsia, KKM=rp01389 | - |
dc.identifier.authority | Wong, KKY=rp00189 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1364/OE.26.024928 | - |
dc.identifier.scopus | eid_2-s2.0-85053407684 | - |
dc.identifier.hkuros | 303392 | - |
dc.identifier.hkuros | 305795 | - |
dc.identifier.volume | 26 | - |
dc.identifier.issue | 19 | - |
dc.identifier.spage | 24928 | - |
dc.identifier.epage | 24939 | - |
dc.identifier.isi | WOS:000444705000052 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1094-4087 | - |