Integrated photonic devices based on adiabatic transitions between supersymmetric structures

TitleIntegrated photonic devices based on adiabatic transitions between supersymmetric structures
Publication TypeJournal Article
Year of Publication2018
AuthorsQueraltó, G, Ahufinger, V, Mompart, J
JournalOpt. Express
Volume26
Issue26
Pagination33797–33806
Date PublishedDec
KeywordsFemtosecond laser writing, Guided wave optics, Optical devices, Optical systems, Refractive index, Waveguide modes
Abstract

We introduce adiabatic transitions connecting two supersymmetric partner profiles by smoothly modifying the transverse refractive index profile along the propagation direction. With this transformation, one of the transverse electric modes evolves adapting its shape and propagation constant without being coupled to other guided or radiated modes while the rest of the modes are radiated. This technique offers a systematic way to manipulate the modal content in systems of optical waveguides and engineer efficient and robust photonic devices such as tapered waveguides, single-waveguide mode filters, beam splitters and interferometers. Numerical simulations show that very high fidelities and transmitted powers are obtained for a broad range of devices lengths and light's wavelengths.

URLhttp://www.opticsexpress.org/abstract.cfm?URI=oe-26-26-33797
DOI10.1364/OE.26.033797
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