Dielectric waveguides with embedded graphene nanoribbons for all-optical broadband modulation
Abstract
All-optical processing offers low power consumption and fast operation speed and is a promising approach to high-bit-rate communication. Realization of all-optical integrated photonics requires core materials that strongly mediate photon–photon interaction. Recently, it was shown that, in the long-wavelength limit, graphene nanoribbons (GNRs) have a very strong Kerr optical nonlinearity in the telecom wavelength range (1.3-1.6 µm). We propose a dielectric waveguide with embedded GNRs for all-optical self-amplitude-modulation applications. By implanting a van der Waals (vdW) heterostructure consisting of GNRs and hexagonal boron nitride into a rib silicon waveguide, we maximize the optical concentration near the GNRs and enhance nonlinear optical effects. Different-width GNRs incorporated in the vdW heterostructure provide strong self-sustaining broadband modulation over the telecom frequency range, without a need for dynamical tuning. The compact footprint and self-sustaining, broad-bandwidth saturable absorption make the proposed device a suitable component for ultrafast nanophotonic applications.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1572123
- Alternate Identifier(s):
- OSTI ID: 1801878
- Grant/Contract Number:
- SC0008712
- Resource Type:
- Published Article
- Journal Name:
- Optical Materials Express
- Additional Journal Information:
- Journal Name: Optical Materials Express Journal Volume: 9 Journal Issue: 11; Journal ID: ISSN 2159-3930
- Publisher:
- Optical Society of America
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Materials Science; Optics
Citation Formats
Karimi, F., and Knezevic, I. Dielectric waveguides with embedded graphene nanoribbons for all-optical broadband modulation. United States: N. p., 2019.
Web. doi:10.1364/OME.9.004456.
Karimi, F., & Knezevic, I. Dielectric waveguides with embedded graphene nanoribbons for all-optical broadband modulation. United States. https://doi.org/10.1364/OME.9.004456
Karimi, F., and Knezevic, I. Mon .
"Dielectric waveguides with embedded graphene nanoribbons for all-optical broadband modulation". United States. https://doi.org/10.1364/OME.9.004456.
@article{osti_1572123,
title = {Dielectric waveguides with embedded graphene nanoribbons for all-optical broadband modulation},
author = {Karimi, F. and Knezevic, I.},
abstractNote = {All-optical processing offers low power consumption and fast operation speed and is a promising approach to high-bit-rate communication. Realization of all-optical integrated photonics requires core materials that strongly mediate photon–photon interaction. Recently, it was shown that, in the long-wavelength limit, graphene nanoribbons (GNRs) have a very strong Kerr optical nonlinearity in the telecom wavelength range (1.3-1.6 µm). We propose a dielectric waveguide with embedded GNRs for all-optical self-amplitude-modulation applications. By implanting a van der Waals (vdW) heterostructure consisting of GNRs and hexagonal boron nitride into a rib silicon waveguide, we maximize the optical concentration near the GNRs and enhance nonlinear optical effects. Different-width GNRs incorporated in the vdW heterostructure provide strong self-sustaining broadband modulation over the telecom frequency range, without a need for dynamical tuning. The compact footprint and self-sustaining, broad-bandwidth saturable absorption make the proposed device a suitable component for ultrafast nanophotonic applications.},
doi = {10.1364/OME.9.004456},
journal = {Optical Materials Express},
number = 11,
volume = 9,
place = {United States},
year = {Mon Oct 28 00:00:00 EDT 2019},
month = {Mon Oct 28 00:00:00 EDT 2019}
}
https://doi.org/10.1364/OME.9.004456
Web of Science
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