{"id":{"repo_id":"byu","oai_identifier":"oai:scholarsarchive.byu.edu:etd-1204"},"canonical_url":"https://search.dev.ndltd.org/etd/byu/oai:scholarsarchive.byu.edu:etd-1204","repository":{"repo_id":"byu","name":"Brigham Young University","base_url":"https://scholarsarchive.byu.edu/do/oai/"},"display":{"title":"Polarimetric Temperature Sensor Using Core-replaced Fiber","abstract":"Optical fibers are increasingly being used to create sensing devices. The D-fiber has an elliptical core and exhibits birefringence. This birefringence can be used to create a polarimetric sensor. The elliptical core supports two orthogonal modes that have separate effective indices of refraction. The indices of refraction change with a change in temperature. Since the effective indices of refraction change differently for the two modes, the birefringence also changes. This change in birefringence can be seen as a change in detected power through the fiber through the use of polarizers. The fiber then becomes a temperature sensor. The sensitivity of the fiber can be enhanced by replacing a section of the core of the fiber with a sensing material. With the sensing material in the core of the fiber, it has direct interaction with the light and strongly affects it. A polarimetric temperature sensor is created by replacing a section of the core with a polymer, which is sensitive to temperature. The core-replaced fiber in a polarimetric sensing configuration is compared to a a unetched fiber set up in the same way. The core-replaced fiber sensor is five times as sensitive to temperature as an unetched fiber.","abstract_html":"Optical fibers are increasingly being used to create sensing devices. The D-fiber has an elliptical core and exhibits birefringence. This birefringence can be used to create a polarimetric sensor. The elliptical core supports two orthogonal modes that have separate effective indices of refraction. The indices of refraction change with a change in temperature. Since the effective indices of refraction change differently for the two modes, the birefringence also changes. This change in birefringence can be seen as a change in detected power through the fiber through the use of polarizers. The fiber then becomes a temperature sensor. The sensitivity of the fiber can be enhanced by replacing a section of the core of the fiber with a sensing material. With the sensing material in the core of the fiber, it has direct interaction with the light and strongly affects it. A polarimetric temperature sensor is created by replacing a section of the core with a polymer, which is sensitive to temperature. The core-replaced fiber in a polarimetric sensing configuration is compared to a a unetched fiber set up in the same way. The core-replaced fiber sensor is five times as sensitive to temperature as an unetched fiber.","abstract_has_math":false,"creators":["Ipson, Benjamin L."],"institution":"Brigham Young University - Provo","degree_name":"MS","degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T01:27:34Z","subjects":["optical fiber","D-fiber","sensor","polarimetric","temperature","Electrical and Computer Engineering"],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsarchive.byu.edu/etd/205","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Ipson, Benjamin L."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2004-11-23T08:00:00Z"]},{"key":"dc:publisher","label":"Institution","values":["Brigham Young University - Provo"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["optical fiber","D-fiber","sensor","polarimetric","temperature","Electrical and Computer Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsarchive.byu.edu/etd/205","https://scholarsarchive.byu.edu/context/etd/article/1204/viewcontent/ETD_CISOPTR_224.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ira A. Fulton College of Engineering and Technology; Electrical and Computer Engineering"]},{"key":"dc:description.abstract","label":"Abstract","values":["Optical fibers are increasingly being used to create sensing devices. The D-fiber has an elliptical core and exhibits birefringence. This birefringence can be used to create a polarimetric sensor. The elliptical core supports two orthogonal modes that have separate effective indices of refraction. The indices of refraction change with a change in temperature. Since the effective indices of refraction change differently for the two modes, the birefringence also changes. This change in birefringence can be seen as a change in detected power through the fiber through the use of polarizers. The fiber then becomes a temperature sensor. The sensitivity of the fiber can be enhanced by replacing a section of the core of the fiber with a sensing material. With the sensing material in the core of the fiber, it has direct interaction with the light and strongly affects it. A polarimetric temperature sensor is created by replacing a section of the core with a polymer, which is sensitive to temperature. The core-replaced fiber in a polarimetric sensing configuration is compared to a a unetched fiber set up in the same way. The core-replaced fiber sensor is five times as sensitive to temperature as an unetched fiber."]},{"key":"dc:format","label":"Dc Format","values":["application:pdf"]},{"key":"dc:source","label":"Dc Source","values":["Brigham Young University - Provo"]},{"key":"dc:title","label":"Title","values":["Polarimetric Temperature Sensor Using Core-replaced Fiber"]}]}],"canonical_facts":{"dc:creator":["Ipson, Benjamin L."],"dc:date":["2004-11-23T08:00:00Z"],"dc:description":["Ira A. Fulton College of Engineering and Technology; Electrical and Computer Engineering"],"dc:description.abstract":["Optical fibers are increasingly being used to create sensing devices. The D-fiber has an elliptical core and exhibits birefringence. This birefringence can be used to create a polarimetric sensor. The elliptical core supports two orthogonal modes that have separate effective indices of refraction. The indices of refraction change with a change in temperature. Since the effective indices of refraction change differently for the two modes, the birefringence also changes. This change in birefringence can be seen as a change in detected power through the fiber through the use of polarizers. The fiber then becomes a temperature sensor. The sensitivity of the fiber can be enhanced by replacing a section of the core of the fiber with a sensing material. With the sensing material in the core of the fiber, it has direct interaction with the light and strongly affects it. A polarimetric temperature sensor is created by replacing a section of the core with a polymer, which is sensitive to temperature. The core-replaced fiber in a polarimetric sensing configuration is compared to a a unetched fiber set up in the same way. The core-replaced fiber sensor is five times as sensitive to temperature as an unetched fiber."],"dc:format":["application:pdf"],"dc:identifier":["https://scholarsarchive.byu.edu/etd/205","https://scholarsarchive.byu.edu/context/etd/article/1204/viewcontent/ETD_CISOPTR_224.pdf"],"dc:language":["English"],"dc:publisher":["Brigham Young University - Provo"],"dc:source":["Brigham Young University - Provo"],"dc:subject":["optical fiber","D-fiber","sensor","polarimetric","temperature","Electrical and Computer Engineering"],"dc:title":["Polarimetric Temperature Sensor Using Core-replaced Fiber"],"dc:type":["Thesis"],"thesis:degree_name":["MS"]},"updated_at":"2026-07-24T01:27:34Z"}