High-quality source of fiber-coupled polarization-entangled photons at 1.56 [mu]m
Name
820022569-MIT.pdf
Description
Full printable version
Size
10.81 MB
Format
Adobe PDF
Checksum (MD5)
b7db24a4a889e548e90cd416055db29a
Author(s)
Stelmakh, Veronika
Advisor(s)
Franco N.C. Wong.
Date Issued
2012
Publisher
Massachusetts Institute of Technology
Abstract
This thesis describes the development of a high-quality source of single-mode fibercoupled polarization-entangled photon pairs based on a collinear spontaneous parametric down-conversion process in a bidirectionally pumped periodically-poled potassium titanyl phosphate (PPKTP) crystal inside a polarization Sagnac interferometer at communication wavelength (1.56 [mu]m). A two-photon quantum interference visibility of 97.1% was measured. In addition to the Sagnac source, a linear Mach-Zehnder source at 810 nm was built for the Interdisciplinary Quantum Information Science and Engineering (iQuISE) teaching laboratory, to allow students to observe fundamental quantum phenomena such as the Hong-Ou-Mandel (HOM) dip, the collapse of a Bell state due to measurement, or the Clauser-Horne-Shimony-Holt (CHSH) inequality violation in a single experimental setup. An HOM dip with a two-photon quantum interference visibility of 80% was demonstrated.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.
In title on title page, "[mu]" appears as lower case Greek letter italic. Cataloged from PDF version of thesis.
Includes bibliographical references (p. 91-98).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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