Precise passive alignment between single-mode fibers and grating couplers using 3D nanoprinted ferrules
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Thrall, Tristan E.
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Abstract
Integrated photonics is a technology which has both cutting-edge and wide-reaching
applications in sensing, communication, and computing environments. One key
to the successful implementation and proliferation of integrated photonic systems is their
ability to operate with high efficiency. Insertion loss from coupling between integrated
waveguides and external optic fiber waveguides is one of the major potential sources of
inefficiency in these systems.
For insertion loss to be minimized, physical alignment between waveguide modes
must be highly precise. One way to achieve this is through active alignment, but this
process is time consuming and costly to implement, especially as the number of coupling
interfaces in a photonic system increases. In this thesis, current efforts toward developing
a highly precise method of passive alignment will be discussed. In addition, novel work will be
presented which aims to ease the implementation and improve the performance of a passive
alignment method which was demonstrated by other researchers in this group.
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Date
2025-04-23
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Thesis