dc.contributor.advisor | James G. Fujimoto. | en_US |
dc.contributor.author | Zhang, Jason,S.M.Massachusetts Institute of Technology. | en_US |
dc.contributor.other | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. | en_US |
dc.date.accessioned | 2021-05-24T20:23:56Z | |
dc.date.available | 2021-05-24T20:23:56Z | |
dc.date.copyright | 2021 | en_US |
dc.date.issued | 2021 | en_US |
dc.identifier.uri | https://hdl.handle.net/1721.1/130789 | |
dc.description | Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February, 2021 | en_US |
dc.description | Cataloged from the official PDF version of thesis. | en_US |
dc.description | Includes bibliographical references (pages 67-72). | en_US |
dc.description.abstract | Swept-source optical coherence tomography (SS-OCT) enables volumetric imaging of subsurface structure, but applications requiring wide fields of view, rapid imaging, and higher resolutions have been challenging because of the need for multi-MHz A-scan rates. Until now, achieving multi-MHz A-scan rates has been limited to Fourier-domain mode-locked lasers or stretched-pulse lasers. We describe a microelectromechanical-system, vertical-cavity surface-emitting laser (MEMS-VCSEL) for SS-OCT at A-scan rates of 2.4 and 3.0 MHz using a dual-channel acquisition system. Dual-channel operation enables simultaneous acquisition of Mach-Zehnder interferometer (MZI) fringes for sweep-to-sweep calibration and resampling, overcoming inherent optical clock limitations in state-of-the-art digitizers. We demonstrate structural OCT and OCT angiography (OCTA) imaging of the swine gastrointestinal tract using a suite of endoscopic devices, including a 3.2 mm diameter micromotor catheter, a 12 mm diameter tethered capsule, and a 12 mm diameter wide-field OCTA probe. MEMS-VCSELs promise to enable ultrahigh-speed SS-OCT with a scalable, low cost, and manufacturable technology, suitable for a diverse range of imaging applications. | en_US |
dc.description.statementofresponsibility | by Jason Zhang. | en_US |
dc.format.extent | 72 pages | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Massachusetts Institute of Technology | en_US |
dc.rights | MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided. | en_US |
dc.rights.uri | http://dspace.mit.edu/handle/1721.1/7582 | en_US |
dc.subject | Electrical Engineering and Computer Science. | en_US |
dc.title | MEMS-VCSEL swept-source optical coherence tomography for multi-MHz endoscopic structural and angiographic imaging | en_US |
dc.title.alternative | Microelectromechanical-system, vertical-cavity surface-emitting laser swept-source optical coherence tomography for multi-MHz endoscopic structural and angiographic imaging | en_US |
dc.type | Thesis | en_US |
dc.description.degree | S.M. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
dc.identifier.oclc | 1252064616 | en_US |
dc.description.collection | S.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science | en_US |
dspace.imported | 2021-05-24T20:23:56Z | en_US |
mit.thesis.degree | Master | en_US |
mit.thesis.department | EECS | en_US |