Single-Photon Frequency Upconversion for Long-Distance Quantum Teleportation and Communication
Name
Albota TR #714.pdf
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Author(s)
Albota, Marius A.
Date Issued
August 23, 2006
Series/Report no.
Technical Report (Massachusetts Institute of Technology, Research Laboratory of Electronics);
714
Abstract
Entanglement generation, single-photon detection, and frequency translation that
preserves the polarization quantum state of the photons are essential technologies for
long distance quantum communication protocols. This thesis investigates the application
of polarization entanglement to quantum communication, including frequency
upconversion, photon-counting detection, and photon-pair and entanglement generation.
We demonstrate a near-unity efficient frequency conversion scheme that allows
fast and efficient photon counting at wavelengths in the low-loss fiberoptic and atmospheric
transmission band near 1.55 µm. This upconverter, which is polarizationselective,
is useful for classical as well as quantum optical communication. We investigate
several schemes that allow frequency translation of polarization-entangled
photons generated via spontaneous parametric downconversion in second order nonlinear
crystals. We demonstrate upconversion from ∼1.56 to 0.633 µm that preserves
the polarization state of an arbitrarily polarized input. The polarization-insensitive
upconverter uses bidirectional sum-frequency generation in bulk periodically poled
lithium niobate and a Michelson interferometer to stabilize the phase. Using this
bidirectional upconversion technique, entangled photons produced in a periodically
poled parametric downconverter can be translated to a different wavelength with
preservation of their polarization state. We discuss the implications of these results
for quantum information processing.
Description
Thesis Supervisor: Franco N. C. Wong
Title: Senior Research Scientist
Thesis Supervisor: Jeffrey H. Shapiro
Title: Julius A. Stratton Professor of Electrical Engineering
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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