Open AccessManipulation of extinction features in frequency combs through the usage of graphene
Author(s) -
Mariana Gil Barturen,
Nicolás Abadía,
J. Milano,
Pablo A. Costanzo Caso,
David V. Plant
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.015490
Subject(s) - graphene , materials science , resonator , optics , optoelectronics , voltage , extinction ratio , semiconductor , transmission (telecommunications) , semiconductor device , wavelength , layer (electronics) , physics , nanotechnology , computer science , telecommunications , quantum mechanics
Lately, the integration of two-dimensional materials into semiconductor devices has allowed the modification of their effective index by simply applying a modest voltage (between 0 and 3 volts). In this work, we present a device composed of two evanescently coupled silicon microring resonators where both rings have a graphene layer on top. This design is aimed to produce frequency combs with transmission characteristics controlled upon voltage application to the graphene layer. We numerically analyze the device response as a function of the incident wavelength and applied voltage. The results showed a low input intensity (0.6 GW/cm 2 ) needed and a rapid response time (0.1 μs), in comparison to devices controlled by heat injection.