{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/127027"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/127027","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Integrated optical phased arrays : augmented reality, LiDAR, and beyond","abstract":"Integrated optical phased arrays, fabricated in advanced silicon-photonics platforms, enable manipulation and dynamic control of free-space light in a compact form factor, at low costs, and in a non-mechanical way. As such, integrated optical phased arrays have emerged as a promising technology for many wide-reaching applications, including LiDAR sensors and augmented-reality displays. In this thesis, novel integrated-optical-phased-array devices, systems, results, and applications are presented. First, beam-steering optical phased arrays for LiDAR are shown, including the first beam-steering optical phased arrays powered by monolithically-integrated on-chip rare-earth-doped lasers, the first beam-steering optical phased arrays controlled using heterogeneously-integrated CMOS driving electronics, and the first single-chip coherent LiDAR with integrated optical phased arrays and CMOS receiver electronics.","abstract_html":"Integrated optical phased arrays, fabricated in advanced silicon-photonics platforms, enable manipulation and dynamic control of free-space light in a compact form factor, at low costs, and in a non-mechanical way. As such, integrated optical phased arrays have emerged as a promising technology for many wide-reaching applications, including LiDAR sensors and augmented-reality displays. In this thesis, novel integrated-optical-phased-array devices, systems, results, and applications are presented. First, beam-steering optical phased arrays for LiDAR are shown, including the first beam-steering optical phased arrays powered by monolithically-integrated on-chip rare-earth-doped lasers, the first beam-steering optical phased arrays controlled using heterogeneously-integrated CMOS driving electronics, and the first single-chip coherent LiDAR with integrated optical phased arrays and CMOS receiver electronics.","abstract_has_math":false,"creators":["Notaros, Jelena."],"institution":"Massachusetts Institute of Technology","degree_name":"Doctoral","degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science","school":null,"contributors":[],"advisors":["Michael R. Watts."],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020","date_published":"2020","updated_at":"2026-07-22T22:21:30Z","subjects":["Electrical Engineering and Computer Science."],"languages":["eng"],"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."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1721.1/127027","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Michael R. Watts."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. 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Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1721.1/127027"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020","Cataloged from the official PDF of thesis.","Includes bibliographical references (pages 129-139)."]},{"key":"dc:description.abstract","label":"Abstract","values":["Integrated optical phased arrays, fabricated in advanced silicon-photonics platforms, enable manipulation and dynamic control of free-space light in a compact form factor, at low costs, and in a non-mechanical way. As such, integrated optical phased arrays have emerged as a promising technology for many wide-reaching applications, including LiDAR sensors and augmented-reality displays. In this thesis, novel integrated-optical-phased-array devices, systems, results, and applications are presented. First, beam-steering optical phased arrays for LiDAR are shown, including the first beam-steering optical phased arrays powered by monolithically-integrated on-chip rare-earth-doped lasers, the first beam-steering optical phased arrays controlled using heterogeneously-integrated CMOS driving electronics, and the first single-chip coherent LiDAR with integrated optical phased arrays and CMOS receiver electronics.","These demonstrations are important steps towards practical commercialization of low-cost and high-performance integrated LiDAR sensors for autonomous vehicles. Next, integrated optical phased arrays for optical manipulation in the near field are developed, including the first near-field-focusing integrated optical phased arrays, the first quasi-Bessel-beam-generating integrated optical phased arrays, and a novel active butterfly architecture for independent amplitude and phase control. These near-field modalities have the potential to advance a number of application areas, such as optical trapping for biological characterization, trapped-ion quantum computing, and laser-based 3D printing.","Finally, a novel transparent integrated-phased-array-based holographic display is proposed as a highly-discreet and fully-holographic solution for the next generation of augmented-reality head-mounted displays; novel passive near-eye displays that generate holograms, the first integrated visible-light liquid-crystal-based phase and amplitude modulators, and the first actively-tunable visible-light integrated optical phased arrays are presented."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Ph. D."]},{"key":"dc:title","label":"Title","values":["Integrated optical phased arrays : augmented reality, LiDAR, and beyond"]}]}],"canonical_facts":{"dc:contributor.advisor":["Michael R. Watts."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science","EECS"],"dc:contributor.other":["Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science."],"dc:creator":["Notaros, Jelena."],"dc:date.accessioned":["2020-09-03T17:42:46Z"],"dc:date.available":["2020-09-03T17:42:46Z"],"dc:date.issued":["2020"],"dc:description":["Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020","Cataloged from the official PDF of thesis.","Includes bibliographical references (pages 129-139)."],"dc:description.abstract":["Integrated optical phased arrays, fabricated in advanced silicon-photonics platforms, enable manipulation and dynamic control of free-space light in a compact form factor, at low costs, and in a non-mechanical way. As such, integrated optical phased arrays have emerged as a promising technology for many wide-reaching applications, including LiDAR sensors and augmented-reality displays. In this thesis, novel integrated-optical-phased-array devices, systems, results, and applications are presented. First, beam-steering optical phased arrays for LiDAR are shown, including the first beam-steering optical phased arrays powered by monolithically-integrated on-chip rare-earth-doped lasers, the first beam-steering optical phased arrays controlled using heterogeneously-integrated CMOS driving electronics, and the first single-chip coherent LiDAR with integrated optical phased arrays and CMOS receiver electronics.","These demonstrations are important steps towards practical commercialization of low-cost and high-performance integrated LiDAR sensors for autonomous vehicles. Next, integrated optical phased arrays for optical manipulation in the near field are developed, including the first near-field-focusing integrated optical phased arrays, the first quasi-Bessel-beam-generating integrated optical phased arrays, and a novel active butterfly architecture for independent amplitude and phase control. These near-field modalities have the potential to advance a number of application areas, such as optical trapping for biological characterization, trapped-ion quantum computing, and laser-based 3D printing.","Finally, a novel transparent integrated-phased-array-based holographic display is proposed as a highly-discreet and fully-holographic solution for the next generation of augmented-reality head-mounted displays; novel passive near-eye displays that generate holograms, the first integrated visible-light liquid-crystal-based phase and amplitude modulators, and the first actively-tunable visible-light integrated optical phased arrays are presented."],"dc:description.degree":["Ph. D."],"dc:identifier.uri":["https://hdl.handle.net/1721.1/127027"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"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."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Electrical Engineering and Computer Science."],"dc:title":["Integrated optical phased arrays : augmented reality, LiDAR, and beyond"],"dc:type":["Thesis"],"thesis:degree_name":["Doctoral"]},"updated_at":"2026-07-22T22:21:30Z"}