{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/102511"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/102511","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Semiconductor laser mode engineering via waveguide index structuring","abstract":"Semiconductor laser diodes are used in many applications, and their performance is often strongly influenced by the optical mode properties. In this work, dielectric waveguides and their guided modes have been simulated and analyzed as relevant to semiconductor diode lasers. The transverse refractive index structure of waveguides determines the modal field profiles and modal properties. By engineering the transverse index structure we show that it is possible to increase modal discrimination and impart modal selection. We further show that we can engineer the modal field profile itself for the purpose of engineering the properties of the laser beam, such as far-field brightness. Therefore waveguide engineering using index structuring may be beneficial to enhancing semiconductor laser performance.","abstract_html":"Semiconductor laser diodes are used in many applications, and their performance is often strongly influenced by the optical mode properties. In this work, dielectric waveguides and their guided modes have been simulated and analyzed as relevant to semiconductor diode lasers. The transverse refractive index structure of waveguides determines the modal field profiles and modal properties. By engineering the transverse index structure we show that it is possible to increase modal discrimination and impart modal selection. We further show that we can engineer the modal field profile itself for the purpose of engineering the properties of the laser beam, such as far-field brightness. Therefore waveguide engineering using index structuring may be beneficial to enhancing semiconductor laser performance.","abstract_has_math":false,"creators":["Strzebonski, Pawel Jakub"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Choquette, Kent D."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-02-06T19:36:43Z","date_published":"2019-02-06T19:36:43Z","updated_at":"2026-07-22T22:24:42Z","subjects":["Semiconductor Diode Lasers","Lasers","Dielectric Waveguide","Waveguide Modes","Laser Modes","Helmholtz Equation","Finite Difference Method","Modal Discrimination","Modal Selection","Mode Engineering","Beam Engineering","Beam Brightness"],"languages":["en"],"rights":["Copyright 2018 Pawel Jakub Strzebonski"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/102511","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Choquette, Kent D."]},{"key":"dc:creator","label":"Author","values":["Strzebonski, Pawel Jakub"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-02-06T19:36:43Z","2018-12-11","2018-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Semiconductor Diode Lasers","Lasers","Dielectric Waveguide","Waveguide Modes","Laser Modes","Helmholtz Equation","Finite Difference Method","Modal Discrimination","Modal Selection","Mode Engineering","Beam Engineering","Beam Brightness"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2018 Pawel Jakub Strzebonski"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/102511"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Semiconductor laser diodes are used in many applications, and their performance is often strongly influenced by the optical mode properties. In this work, dielectric waveguides and their guided modes have been simulated and analyzed as relevant to semiconductor diode lasers. The transverse refractive index structure of waveguides determines the modal field profiles and modal properties. By engineering the transverse index structure we show that it is possible to increase modal discrimination and impart modal selection. We further show that we can engineer the modal field profile itself for the purpose of engineering the properties of the laser beam, such as far-field brightness. Therefore waveguide engineering using index structuring may be beneficial to enhancing semiconductor laser performance.","Submission original under an indefinite embargo labeled 'Open Access'. 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No. of bitstreams: 3 STRZEBONSKI-THESIS-2018.pdf: 1965632 bytes, checksum: 053a872b21d4e52d047b5c2d84d28854 (MD5) STRZEBONSKI-THESIS-2018-SOURCE.zip: 1541160 bytes, checksum: 9cf7761bab479c147e2a6b5de1603814 (MD5) LICENSE.txt: 4214 bytes, checksum: c168a53918b5e4babe16421cd8a07589 (MD5) Previous issue date: 2018-12-11"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Semiconductor laser mode engineering via waveguide index structuring"]}]}],"canonical_facts":{"dc:contributor":["Choquette, Kent D."],"dc:creator":["Strzebonski, Pawel Jakub"],"dc:date":["2019-02-06T19:36:43Z","2018-12-11","2018-12"],"dc:description":["Semiconductor laser diodes are used in many applications, and their performance is often strongly influenced by the optical mode properties. In this work, dielectric waveguides and their guided modes have been simulated and analyzed as relevant to semiconductor diode lasers. The transverse refractive index structure of waveguides determines the modal field profiles and modal properties. By engineering the transverse index structure we show that it is possible to increase modal discrimination and impart modal selection. We further show that we can engineer the modal field profile itself for the purpose of engineering the properties of the laser beam, such as far-field brightness. Therefore waveguide engineering using index structuring may be beneficial to enhancing semiconductor laser performance.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2019-02-05 without embargo terms","The student, Pawel Strzebonski, accepted the attached license on 2018-12-11 at 11:33.","The student, Pawel Strzebonski, submitted this Thesis for approval on 2018-12-11 at 12:12.","This Thesis was approved for publication on 2018-12-11 at 13:00.","DSpace SAF Submission Ingestion Package generated from Vireo submission #13285 on 2019-02-05 at 11:16:04","Made available in DSpace on 2019-02-06T19:36:43Z (GMT). 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