Abstract
In order to extend the capabilities and applications of silicon photonics, other materials and compatible technologies have been developed and integrated on silicon substrates. A particular class of integrable materials are those with high second- and third-order nonlinear optical properties. This work presents contributions made to nonlinear integrated photonics on silicon substrates, including chalcogenide waveguides for over an octave supercontinuum generation, and rib-loaded thin-film lithium niobate waveguides for highly efficient second-harmonic generation. Through the pursuit of hybrid integration of the two types of waveguides for applications such as on-chip self-referenced optical frequency combs, we have experimentally demonstrated fabrication integrability of chalcogenide and thin-film lithium niobate waveguides in a single chip and a pathway for both second- and third-order nonlinearities occurring therein. Accordingly, design specifications for an efficient nonlinear integrated waveguide are reported, showing over an octave supercontinuum generation and frequency selectivity for second-harmonic generation, enabling potentials of on-chip interferometry techniques for carrier-envelope offset detection, and hence stabilized optical combs.
Notes
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Graduation Date
2019
Semester
Summer
Advisor
Fathpour, Sasan
Degree
Doctor of Philosophy (Ph.D.)
College
College of Optics and Photonics
Department
Optics and Photonics
Degree Program
Optics and Photonics
Format
application/pdf
Identifier
CFE0007607
URL
http://purl.fcla.edu/fcla/etd/CFE0007607
Language
English
Release Date
8-15-2022
Length of Campus-only Access
3 years
Access Status
Doctoral Dissertation (Open Access)
STARS Citation
Camacho Gonzalez, Guillermo Fernando, "Hybrid Integration of Second- and Third-order Highly Nonlinear Waveguides on Silicon Substrates" (2019). Electronic Theses and Dissertations. 6459.
https://stars.library.ucf.edu/etd/6459
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