Resolving optical illumination distributions along an axially symmetric photodetecting fiber
Name
796436597-MIT.pdf
Description
Full printable version
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6.66 MB
Format
Adobe PDF
Checksum (MD5)
5aee651d7ce77946b77d675534dc8ab4
Author(s)
Lestoquoy, Guillaume
Advisor(s)
Yoel Fink.
Date Issued
2012
Publisher
Massachusetts Institute of Technology
Abstract
Photodetecting fibers of arbitrary length with internal metal, semiconductor and insulator domains have recently been demonstrated. These semiconductor devices display a continuous translational symmetry which presents challenges to the extraction of spatially resolved information. In this thesis, we overcome this seemingly fundamental limitation and achieve the detection and spatial localization of a single incident optical beam at sub-centimeter resolution, along a one-meter fiber section. Using an approach that breaks the axial symmetry through the constuction of a convex electrical potential along the fiber axis, we demonstrate the full reconstruction of an arbitrary rectangular optical wave profile. Finally, the localization of up to three points of illumination simultaneously incident on a photodetecting fiber is achieved.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 41-43).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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