2026-09-19T06:16:51Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1227532026-02-06T13:17:17Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Dirk Robert Englund.
Chakraborty, Uttara(Electrical engineer and computer scientist)Massachusetts Institute of Technology.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2019-11-04T20:22:34Z
2019-11-04T20:22:34Z
2019
2019
https://hdl.handle.net/1721.1/122753
1124855547
Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 60-69).
Silicon photonics is a highly-promising platform for on-chip quantum information processing. Linear optical quantum computing architectures necessitate the implementation of integrated single photon sources, passive and active optics, and single photon detectors. This thesis presents the development of a scalable, real-time feedback control protocol for stabilizing microring resonator frequencies in parallel with quantum computation using the same classical pump laser fields as are used to seed photon generation. The feedback protocol is applied to correct static and dynamic errors in silicon microring resonators due to fabrication variations and ambient fluctuations, and to demonstrate high-visibility two-photon quantum interference with photon pairs generated by spontaneous four wave mixing. Progress on a new interferometrically-coupled photon generation device for four-photon quantum interference is also presented. Finally, a new scheme is proposed for non-volatile phase shifters in large-scale photonic integrated circuits. The potential use of shape-memory materials for straining silicon waveguides to induce refractive index shifts is explored through finite-element simulations.
"Supported by my NDSEG Fellowship"
by Uttara Chakraborty.
S.M.
S.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
69 pages
eng
Massachusetts Institute of Technology
MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Towards integrated silicon photonic architectures for quantum information processing
Thesis
application/pdf
2019-11-04T20:22:33Z
Publication
Master
EECS
unknown
unknown
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<Abstract>Silicon photonics is a highly-promising platform for on-chip quantum information processing. Linear optical quantum computing architectures necessitate the implementation of integrated single photon sources, passive and active optics, and single photon detectors. This thesis presents the development of a scalable, real-time feedback control protocol for stabilizing microring resonator frequencies in parallel with quantum computation using the same classical pump laser fields as are used to seed photon generation. The feedback protocol is applied to correct static and dynamic errors in silicon microring resonators due to fabrication variations and ambient fluctuations, and to demonstrate high-visibility two-photon quantum interference with photon pairs generated by spontaneous four wave mixing. Progress on a new interferometrically-coupled photon generation device for four-photon quantum interference is also presented. Finally, a new scheme is proposed for non-volatile phase shifters in large-scale photonic integrated circuits. The potential use of shape-memory materials for straining silicon waveguides to induce refractive index shifts is explored through finite-element simulations.</Abstract>
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