2014
DOI: 10.1364/oe.22.026173
|View full text |Cite
|
Sign up to set email alerts
|

Electro-absorption optical modulator using dual-graphene-on-graphene configuration

Abstract: An electro-absorption optical modulator based on dual-graphene-on-graphene configuration is presented and investigated. Four graphene layers are embedded in a silicon-on-insulator (SOI) waveguide, the total metal-graphene contact resistance of this structure is reduced 50% by the graphene layers co-electrode design. By optimizing the position of each graphene-on-graphene (GOG) layer in the waveguide, a strong interaction between graphene layers and light is obtained, which leads to a significant change of the … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

0
40
0

Year Published

2015
2015
2024
2024

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 85 publications
(40 citation statements)
references
References 21 publications
0
40
0
Order By: Relevance
“…Then, we import the data to the Lumerica Mode solution and use the FVC method to calculate the effective refractive index of the waveguide n c . In this Letter, we put only one layer of graphene in the sandwich structure because the single-layer graphene has little influence on the effective refractive index of a sandwich structure if the Fermi level of the graphene is tuned [26] , and we just need a smaller adjustment range of the effective refractive index.…”
mentioning
confidence: 99%
“…Then, we import the data to the Lumerica Mode solution and use the FVC method to calculate the effective refractive index of the waveguide n c . In this Letter, we put only one layer of graphene in the sandwich structure because the single-layer graphene has little influence on the effective refractive index of a sandwich structure if the Fermi level of the graphene is tuned [26] , and we just need a smaller adjustment range of the effective refractive index.…”
mentioning
confidence: 99%
“…The large electroabsorption and electro-refraction effect induced by graphene has been intensively introduced to develop silicon-based modulators that have the advantage of broad optical bandwidth and small device footprint [13][14][15][16]. A graphene-based broadband fiber polarizer has also been experimentally demonstrated by utilization of graphene-induced different attenuation for the TM and TE modes [17].…”
mentioning
confidence: 99%
“…A graphene-based broadband fiber polarizer has also been experimentally demonstrated by utilization of graphene-induced different attenuation for the TM and TE modes [17]. However, to the best of our knowledge, there is no report on graphene-based polarization manipulation devices in silicon photonics despite it having been demonstrated that graphene layer has a much stronger influence on the TM mode than the TE mode of silicon waveguides [15]. In this Letter, we propose and demonstrate an ultra-compact slot waveguide TE-pass polarizer with graphene multilayer embedded at telecommunications wavelengths.…”
mentioning
confidence: 99%
See 1 more Smart Citation
“…7 In recent years, a great deal of attention has been attracted to SPPs on graphene, [8][9][10][11][12][13] which are very suitable for optoelectronic applications. [14][15][16][17][18] The complex conductivity of graphene (r g ¼ r g;r þ ir g;i ) can be well tuned by varying its chemical potential via gate voltage, electric field, magnetic field, and chemical doping. 19,20 The conductivity also depends on the radian frequency, charged particle scattering rate, and temperature.…”
mentioning
confidence: 99%