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Double-layer graphene on photonic crystal waveguide electro-absorption modulator with 12 GHz bandwidth.
- Source :
- Nanophotonics (21928606); Aug2020, Vol. 9 Issue 8, p2377-2385, 9p
- Publication Year :
- 2020
-
Abstract
- Graphene has been widely used in silicon-based optical modulators for its ultra-broadband light absorption and ultrafast optoelectronic response. By incorporating graphene and slow-light silicon photonic crystal waveguide (PhCW), here we propose and experimentally demonstrate a unique double-layer graphene electro-absorption modulator in telecommunication applications. The modulator exhibits a modulation depth of 0.5 dB/μm with a bandwidth of 13.6 GHz, while graphene coverage length is only 1.2 μm in simulations. We also fabricated the graphene modulator on silicon platform, and the device achieved a modulation bandwidth at 12 GHz. The proposed graphene-PhCW modulator may have potentials in the applications of on-chip interconnections. [ABSTRACT FROM AUTHOR]
- Subjects :
- PHOTONIC crystals
GRAPHENE
SILICON crystals
LIGHT modulators
OPTICAL modulators
Subjects
Details
- Language :
- English
- ISSN :
- 21928606
- Volume :
- 9
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Nanophotonics (21928606)
- Publication Type :
- Academic Journal
- Accession number :
- 145186775
- Full Text :
- https://doi.org/10.1515/nanoph-2019-0381