Significantly High Modulation Efficiency of Compact Graphene Modulator Based on Silicon Waveguide

Shu, Haowen; Su, Zhaotang; Huang, Le; Wu, Zhennan; Zhang, Zhiyong; Zhou, Zhen

doi:10.1038/s41598-018-19171-x

Cited by 51 publications

(46 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, they have large interaction lengths due to their weak electro-refractivity. Thus, these devices have large footprints making it challenging to attain the ultra-compact designs using these devices [13][14][15] .…”

Section: Integrated Non-volatile Plasmonic Switches Based On Phase-change-materials and Their Application To Plasmonic Logic Circuitsmentioning

confidence: 99%

Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

Ghosh

Dhawan

2021

Sci Rep

View full text Add to dashboard Cite

Integrated photonic devices or circuits that can execute both optical computation and optical data storage are considered as the building blocks for photonic computations beyond the von Neumann architecture. Here, we present non-volatile hybrid electro-optic plasmonic switches as well as novel architectures of non-volatile combinational and sequential logic circuits. The electro-optic switches consist of a plasmonic waveguide having a thin layer of a phase-change-material (PCM). The optical losses in the waveguide are controlled by changing the phase of the PCM from amorphous to crystalline and vice versa. The phase transition process in the PCM can be realized by electrical threshold switching or thermal conduction heating via external electrical heaters or the plasmonic waveguide metal itself as an integrated heater. We have demonstrated that all logic gates, a half adder circuit, as well as sequential circuits can be implemented using the plasmonic switches as the active elements. Moreover, the designs of the plasmonic switches and the logic operations show minimum extinction ratios greater than 20 dB, compact designs, low operating power, and high-speed operations. We combine photonics, plasmonics and electronics on the same platform to design an effective architecture for logic operations.

show abstract

Section: Integrated Non-volatile Plasmonic Switches Based On Phase-change-materials and Their Application To Plasmonic Logic Circuitsmentioning

confidence: 99%

Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

Ghosh

Dhawan

2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Giambra et al [41] demonstrated a broadband electro-absorption modulator with 29 GHz bandwidth by integrating the dual-layer graphene capacitor on the passive SOI waveguide. Besides the dual-layer graphene capacitor, Shu et al [42], Hu et al [43], and Sorianello et al [44] demonstrated the graphene-oxide-silicon capacitor-based waveguide-integrated modulators, in which the gate voltage is applied through the intentionally doped silicon waveguide. Apart from passive straight waveguide structures, the hybrid plasmonic waveguide-integrated modulators were demonstrated with potential for achieving high modulation depth.…”

Section: Waveguide-integrated Graphene Photonic Devices For Communicamentioning

confidence: 99%

Recent Progress in Waveguide-Integrated Graphene Photonic Devices for Sensing and Communication Applications

et al. 2020

View full text Add to dashboard Cite

Graphene is a two-dimensional material with numerous intriguing optical properties, such that graphene photonic devices have attracted great interest for sensing and communication applications. However, surface-illuminated graphene photonic devices usually suffer from weak light-matter interactions due to the atomic-layer thickness of graphene, seriously limiting the performances of such devices. To tackle this problem, waveguide-integrated graphene photonic devices have been demonstrated since 2010, which offer the advantage of much longer interaction length between the evanescent field of the optical waveguide and graphene than the surface-illuminated devices. Moreover, the fabrication of waveguide-integrated graphene photonic devices is compatible with CMOS technology, allowing potentially low-cost and high-density on-chip integration. To date, a tremendous interest is growing in the hybrid integration platform composed of graphene and silicon photonic integrated circuits. In this paper, we review the recent progress in waveguide-integrated graphene photonic devices and their applications in sensing and communication.

show abstract

“…In addition, resonance wavelength shifts of ring modulators are usually limited to the order of 0.1 nm [4]. Graphene, due to its extraordinary optical and electronic properties, has been extensively studied in optoelectronics, and different kinds of optoelectronic devices have benefited from graphene to achieve better performance, such as modulators [9][10][11], photodetectors [12,13], polarisers [14,15] and so forth. The performance gain can also be extended to ring modulators.…”

Section: Introductionmentioning

confidence: 99%

Transverse electric/magnetic switchable absorption ring modulator based on graphene

Zhou

Chen

2021

IET Optoelectronics

View full text Add to dashboard Cite

We propose a transverse electric (TE)/transverse magnetic (TM) switchable absorption ring modulator based on graphene that can operate in either the TE or the TM mode. By adjusting the applied voltages onto the graphene layers in horizontal and perpendicular directions, either a TE or a TM absorption ring modulator can be configured, as has been previously reported. The simulation results show that a TE or TM modulator can be configured with a large extinction ratio and wide waveband from 1300 to 2000 nm. Specifically, the modulation bandwidth can be enlarged to over 130 GHz, which is rarely seen in conventional ring modulators. Also investigated is the possibility of extending the resonance wavelength shift to more than 5 nm by replacing the monolayer graphene structure with a quadrilayer graphene structure.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Significantly High Modulation Efficiency of Compact Graphene Modulator Based on Silicon Waveguide

Cited by 51 publications

References 32 publications

Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

Recent Progress in Waveguide-Integrated Graphene Photonic Devices for Sensing and Communication Applications

Transverse electric/magnetic switchable absorption ring modulator based on graphene

Contact Info

Product

Resources

About