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.

Authors
G. Queraltó, J. Mompart, i V. Ahufinger
Citation Key
278
COinS Data

Date Published
2018-12-27 03:39
DOI
10.1364/OE.26.033797
Keywords
Femtosecond laser writing, Guided wave optics, Optical devices, Optical systems, Refractive index, Waveguide modes
Issue
26
Pagination
33797–33806
Journal
Opt. Express
URL
http://www.opticsexpress.org/abstract.cfm?URI=oe-26-26-33797
Volume
26
Year of Publication
2018