Double-layer graphene on photonic crystal waveguide electro-absorption modulator with 12 GHz bandwidthphotonic crystal waveguidesgraphenemodulatorselectro-optical devicesGraphene has been widely used in silicon-based optical modulators for its ultra-broadband light absorption and ultrafast optoelectronic response....
The invention provides a method for manufacturing a double-layer graphene electrooptical modulator on the basis of a silicon substrate optical waveguide micro-ring resonant cavity. The method comprises the steps that firstly, simulation and design of the silicon substrate optical waveguide micro-ring ...
GrapheneOptical modulationCoupled-mode theoryWe proposed an electro-optic modulator with two-bus one-ring (TBOR) structure to improve the extinction ratio and reduce insert loss. It has a dual output compared with one-bus one-ring structure. In addition, double-layer graphene makes it possible ...
GrapheneOptical modulationCoupled-mode theoryWe proposed an electro-optic modulator with two-bus one-ring (TBOR) structure to improve the extinction ratio and reduce insert loss. It has a dual output compared with one-bus one-ring structure. In addition, double-layer graphene makes it possible ...
Here, we propose a mid-infrared enhanced plasmonic modulator that integrates double-layer graphene in a reflective structure. It is demonstrated that double-layer graphene can support plasmonic resonances with higher oscillator intensity than single-layer in this modulator. The proposed modulator exhibits...
6. Conclusions We have proposed a high-speed double-layer graphene electro-optic modulator based on a ring resonator structure. The numerical simulations show that the modulator features an optical bandwidth larger than 130 GHz, the modulation depth is larger than 40 dB, and the modulation speed ...
Super-narrow, extremely high quality collective plasmon resonances at telecom wavelengths and their application in a hybrid graphene-plasmonic modulator. Nano Lett. 2015, 15, 3519–3523. [Google Scholar] [CrossRef] Lee, U. Spectral Element Method in Structural Dynamics; John Wiley & Sons Asia: ...
A modulator of terahertz radiation based on a double graphene-layer (GL) heterostructure utilizing the variation of the GL absorption and the resonant excitation of plasma oscillations is proposed. The dynamic operation and the modulation properties are substantiated using the developed device model. It...
In addition, the absorption range is 52%–100% by changing the Fermi level of the graphene layer. The perfect absorber is symmetrical in rotation center and insensitive to incident angle and polarization. It can be widely used in terahertz switch, modulator design, power acquisition and other ...
GrapheneEquivalent circuit methodGraphene has become an ideal material in terahertz domain due to its linear band-structure and extraordinary carrier transport properties as well as the variable carrier density which can be modified by bias voltage. A high-performance modulator based on double-layer ...