2026-09-22T03:23:33Zhttps://dspace.mit.edu/server/oai/request

oai:dspace.mit.edu:1721.1/1585132025-04-07T08:27:26Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023

Notaros, Jelena Garcia Coleto, Andres Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science 2025-03-12T16:56:49Z 2025-03-12T16:56:49Z 2024-09 2025-03-04T18:45:02.679Z https://hdl.handle.net/1721.1/158513 Current developments in integrated visible-light photonics have led to advancements in applications such as augmented-reality displays and quantum systems. However, the development of crucial integrated-photonics devices such as integrated gratingbased antennas and integrated optical modulators has predominantly focused on the infrared spectrum, leaving a gap in visible-light technologies. This thesis addresses this gap by designing and experimentally demonstrating integrated visible-light liquidcrystal-based (LC-based) modulators and grating-based antennas. First, we provide a thorough design guide for integrated visible-light grating-based antennas and experimentally demonstrate five antennas with varying advanced capabilities, including the first visible-light unidirectionally-emitting grating-based antennas for integrated optical phased arrays (OPAs), facilitating the use of integrated OPAs for new visible-light applications. Second, we discuss the fabrication processes, considerations, and evaluation techniques for successful packaging of integrated LC modulators, supporting the broader integration of LC into silicon-photonics platforms, enabling more compact and efficient on-chip modulation. Third, we experimentally demonstrate the first integrated visible-light LC-based variable-tap amplitude modulators, enabling a compact and low-power solution to integrated visible-light amplitude modulation for high-density integrated visible-light systems. Fourth, we experimentally demonstrate the first 300-mm wafer-scale platform and fabrication process that results in mechanically-flexible photonic wafers and chips, enabling the field of integrated photonics to advance into new application areas that require flexible photonic chips. S.M. Massachusetts Institute of Technology In Copyright - Educational Use Permitted Copyright retained by author(s) https://rightsstatements.org/page/InC-EDU/1.0/ Integrated Visible-Light Liquid-Crystal-Based Modulators and Grating-Based Antennas Thesis application/pdf Master Master of Science in Electrical Engineering and Computer Science Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="f1a94638-f763-48bd-a1e6-da6b331abf4f"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Title>Integrated Visible-Light Liquid-Crystal-Based Modulators and Grating-Based Antennas</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2024-09</PublicationDate> <Authors> <Author> <DisplayName>Garcia Coleto, Andres</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>https://rightsstatements.org/page/InC-EDU/1.0/</License> <Abstract>Current developments in integrated visible-light photonics have led to advancements in applications such as augmented-reality displays and quantum systems. However, the development of crucial integrated-photonics devices such as integrated gratingbased antennas and integrated optical modulators has predominantly focused on the infrared spectrum, leaving a gap in visible-light technologies. This thesis addresses this gap by designing and experimentally demonstrating integrated visible-light liquidcrystal-based (LC-based) modulators and grating-based antennas. First, we provide a thorough design guide for integrated visible-light grating-based antennas and experimentally demonstrate five antennas with varying advanced capabilities, including the first visible-light unidirectionally-emitting grating-based antennas for integrated optical phased arrays (OPAs), facilitating the use of integrated OPAs for new visible-light applications. Second, we discuss the fabrication processes, considerations, and evaluation techniques for successful packaging of integrated LC modulators, supporting the broader integration of LC into silicon-photonics platforms, enabling more compact and efficient on-chip modulation. Third, we experimentally demonstrate the first integrated visible-light LC-based variable-tap amplitude modulators, enabling a compact and low-power solution to integrated visible-light amplitude modulation for high-density integrated visible-light systems. Fourth, we experimentally demonstrate the first 300-mm wafer-scale platform and fabrication process that results in mechanically-flexible photonic wafers and chips, enabling the field of integrated photonics to advance into new application areas that require flexible photonic chips.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>