Affiliation:
1. Chongqing Key Laboratory of Nonlinear Circuits and Intelligent Information Processing
2. University of Electronic Science and Technology of China
Abstract
Multifunctional plasmonic components are the foundation for achieving a
flexible and versatile photonic integrated loop. A compact device that
can transform between multiple different functions is presented. The
proposed structure consists of a resonator with a rotatable oval core
coupled with three waveguides. The temporal coupled-mode theory and
finite-difference time-domain method reveal that embedding of the
elliptical core alters the original resonance mode, and the rotation
of the core can manipulate field distribution in the cavity.
Specifically, two switchable operating wavelengths are obtained, and
the wavelengths can be adjusted by modifying the structural parameters
of the elliptical core. Ultimately, a multifunctional optical device
with signal controllability can be realized through the rotation of
the embedded rotor: power splitter with selectable wavelengths and
splitting ratios; bandpass filter with controllable output ports,
wavelengths, and transmissions; demultiplexer with tunable output
ports and transmissions; and switch with variable output ports,
wavelengths, and transmissions. The fabrication tolerance of the
device is investigated, considering waveguide width and coupling
distance. This multifunctional plasmonic device is of great
significance for the design and implementation of optical
networks-on-chips.
Funder
Chongqing Talent Plan
Innovation Research 2035 Pilot Plan of
Southwest University
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
1 articles.
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