Graphene photonic crystal waveguide modulator
WebMar 1, 2024 · Abstract. A compact electro-absorption modulator based on graphene photonic crystal fiber is proposed. To enhance the graphene–light interaction efficiency, the innermost six air-holes of photonic crystal fiber are replaced by two large semicircular holes, and monolayer graphene is deposited on the two large semicircular holes. WebA Terahertz Modulator Based on Graphene Plasmonic Waveguide. 肖丙刚. 2015年10月. IEEE PHOTONICS TECHNOLOGY LETTERS. SCIE. 2.11. 工程技术. A terahertz modulator based on double-layer graphene. ... Design and measurement of all-rod terahertz photonic crystal fiber with air-core.
Graphene photonic crystal waveguide modulator
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WebLi et al. integrated graphene on the photonic crystal waveguide with a lateral p-i-n configuration which creates a built-in electrical field and enables the bias-free photodetection. Besides photonic crystal waveguides, … WebJan 15, 2024 · By electrostatic gating a single layer of graphene on top of a photonic crystal cavity, the cavity resonance can be changed significantly and the analysis shows that a graphene-photonic crystal device can potentially be useful for a high speed and low power absorptive and refractive modulator, while maintaining a small physical footprint.
WebOct 30, 2024 · Graphene-sandwiched photonic-crystal thermo-optic switch. a, ... we utilize the versatile ChG material to demonstrate the first graphene-based waveguide modulator operating in the mid-infrared. WebGraphene has been widely used in silicon-based optical modulators for its ultra-broadband light absorption and ultrafast optoelectronic response. By incorporating graphene and …
WebCombining the curved waveguide with the straight waveguide improves the coupling efficiency of the one-dimensional photonic crystal nanobeam cavity and the nanowire waveguides. A layer of Al 2 O 3 is covered on top of the silicon plate and the one-dimensional photonic crystal nanobeam cavity, and a single-layer graphene is added … WebJul 30, 2024 · Using the sum frequency generation cross-correlation frequency-resolved optical gating (SFG-XFROG) measurement setup, we observed the soliton evolution of low energy pulse in an Si photonic crystal waveguide, and it exhibited the pulse broadening, blue shift, and evident pulse acceleration. The soliton evolution was also investigated by …
WebFeb 15, 2024 · Section snippets Optimization of the graphene-on-SiN multimode waveguide. The graphene-based SiN waveguide integrated electro-optic modulator was designed on a SiN-on-insulator wafer with 300 nm SiN layer (H) [11] and 4 μ m buried oxide (BOX), as shown in Fig. 2. The SiN multimode waveguides with a width (W) of 1600 nm …
WebNov 13, 2024 · We present a graphene photodetector for datacom applications based on a silicon photonic crystal defect waveguide. The photonic structure is used to confine the propagating light in a narrow region in the graphene layer to enhance light–matter interaction. Additionally, it is utilized as a split-gate electrode to create a p–n junction in … ctp topicsWebJun 1, 2014 · A lot of graphene-based photonic modulators have been ... the waveguide modulator offers 324.4 and 162.2 GHz bandwidth for 100-and 200 µm-waveguide … ctp trentino downloadWebrating graphene and slow-light silicon photonic crystal waveguide (PhCW), here we propose and experimentally demonstrate a unique double-layer graphene electro … earth station oamc tendersWebSep 15, 2016 · The unique optical and electronic properties of graphene allow one to realize active optical devices. While several types of graphene-based photonic modulators … ctp tradingdayWebGraphene absorbers have attracted lots of interest in recent years. They provide huge potential for applications such as photodetectors, modulators, and thermal emitters. In this letter, we design a high-quality (Q) factor resonant graphene absorber based on the phase change material Sb2S3. In the proposed structure, a refractive index grating is formed at … ctp tradingday actiondayWebNov 13, 2024 · We present a graphene photodetector for telecom applications based on a silicon photonic crystal defect waveguide. The photonic structure is used to confine the propagating light in a narrow region in the graphene layer to enhance light-matter interaction. Additionally, it is utilized as split-gate electrode to create a pn-junction in the … ct-ptsd oxcadatWebNov 5, 2024 · We demonstrate a high-performance graphene-silicon slot-waveguide electro-optic micro-ring modulator featuring a record modulation efficiency of 10.99 V ⁻¹ µm ⁻¹ with a 33-dB extinction ... earth station antenna