Device Architectures for Low Voltage and Ultrafast Graphene Integrated Phase Modulators

Mao, Dun; Cheng, Chen; Wang, Feifan; Xiao, Yahui; Li, Tiantian; Chang, Lorry; Soman, Anishkumar; Kananen, Thomas; Zhang, Xian; Krainak, Michael A.; Dong, Po; Gu, Tingyi

doi:10.1109/jstqe.2020.3026357

Cited by 25 publications

(14 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another method to reach higher modulation depths is to employ resonance structures such as photonic crystal cavities and MRRs. Photonic crystal cavities have the advantages of ultra-compact light confinement and could be a promising way to reach higher modulation depth [42][43][44]. According to Gan et al's report, a high modulation more than 10 dB is demonstrated by modulating both the quality factor and the resonance wavelength of the cavity (Figure 2b).…”

Section: E-o Modulationmentioning

confidence: 99%

Graphene on Silicon Photonics: Light Modulation and Detection for Cutting-Edge Communication Technologies

2021

View full text Add to dashboard Cite

Graphene—a two-dimensional allotrope of carbon in a single-layer honeycomb lattice nanostructure—has several distinctive optoelectronic properties that are highly desirable in advanced optical communication systems. Meanwhile, silicon photonics is a promising solution for the next-generation integrated photonics, owing to its low cost, low propagation loss and compatibility with CMOS fabrication processes. Unfortunately, silicon’s photodetection responsivity and operation bandwidth are intrinsically limited by its material characteristics. Graphene, with its extraordinary optoelectronic properties has been widely applied in silicon photonics to break this performance bottleneck, with significant progress reported. In this review, we focus on the application of graphene in high-performance silicon photonic devices, including modulators and photodetectors. Moreover, we explore the trend of development and discuss the future challenges of silicon-graphene hybrid photonic devices.

show abstract

Section: E-o Modulationmentioning

confidence: 99%

Graphene on Silicon Photonics: Light Modulation and Detection for Cutting-Edge Communication Technologies

2021

View full text Add to dashboard Cite

show abstract

“…Consequently, only the influence of dielectric layers (air and silica) near the graphene is considered in the dispersion relationship. The dispersion relationship of the TM polarization plasmon mode is [27]:…”

Section: Structure and Theorymentioning

confidence: 99%

“…Compared with traditional metal materials, graphene has the remarkable characteristics of dynamically tunable conductivity, the broader response spectrum, the higher field confinement, and the lower intrinsic losses [10,24]. In recent years, the field of slow light in the graphene structure has attracted extensive attentions in the research community [8,10,[25][26][27][28][29][30][31]. For example, Banxian Ruan et al proposed a metal grating-coupled graphene metamaterial, for which the group delay can be effectively modulated by the grating period and groove, for which the maximum group delay is 0.4 ps [10].…”

Section: Introductionmentioning

confidence: 99%

Slow Light Effect and Tunable Channel in Graphene Grating Plasmonic Waveguide

Zhang

Lü

et al. 2022

Photonics

View full text Add to dashboard Cite

A graphene plasmon waveguide composed of silicon grating substrate and a silica separator is proposed to generate the slow-light effect. A bias voltage is applied to tune the optical conductivity of graphene. The tunability of the slow-light working channel can be achieved due to the adjustable bias voltage. With an increase in the bias voltage, the working channel exhibited obvious linear blue-shift. The linear correlation coefficient between the working channel and the bias voltage was up to 0.9974. The average value of the normalized delay bandwidth product (NDBP) with different bias voltages was 3.61. In addition, we also studied the tunable group velocity at a specific working channel. Due to the tunability of this miniaturized waveguide structure, it can be used in a variety of applications including optical storage devices, optical buffers and optical switches.

show abstract

“…The investigation of ultrafast nonlinear properties (nonlinear susceptibility, nonlinear refraction and absorption, carrier relaxation lifetime, etc.) is critical for the development of 2D-material-based photonic and optoelectronic devices [ 12 , 13 , 14 , 15 , 16 , 17 ]. Nonlinear saturable absorption is essential for generation of ultrafast laser pulses, which has been widely applied in bulk, fiber, and waveguide laser systems [ 18 , 19 , 20 , 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

High-Stability Hybrid Organic-Inorganic Perovskite (CH3NH3PbBr3) in SiO2 Mesopores: Nonlinear Optics and Applications for Q-Switching Laser Operation

et al. 2021

Self Cite

View full text Add to dashboard Cite

Hybrid organic-inorganic perovskite shows a great potential in the field of photoelectrics. Embedding methyl ammonium lead bromide (MAPbBr3) in a mesoporous silica (mSiO2) layer is an effective method for maintaining optical performance of MAPbBr3 at room temperature. In this work, we synthesized MAPbBr3 quantum dots, embedding them in the mSiO2 layer. The nonlinear optical responses of this composite thin film have been investigated by using the Z-scan technique at a wavelength of 800 nm. The results show plural nonlinear responses in different intensities, corresponding to one- and two-photon processing. Our results support that composites possess saturation intensity of ~27.29 GW/cm2 and varying nonlinear coefficients. The composite thin films show high stability under ultrafast laser irradiating. By employing the composite as a saturable absorber, a passively Q-switching laser has been achieved on a Nd:YVO4 all-solid-state laser platform to generate a laser at ~1 μm.

show abstract

Device Architectures for Low Voltage and Ultrafast Graphene Integrated Phase Modulators

Cited by 25 publications

References 28 publications

Graphene on Silicon Photonics: Light Modulation and Detection for Cutting-Edge Communication Technologies

Graphene on Silicon Photonics: Light Modulation and Detection for Cutting-Edge Communication Technologies

Slow Light Effect and Tunable Channel in Graphene Grating Plasmonic Waveguide

High-Stability Hybrid Organic-Inorganic Perovskite (CH3NH3PbBr3) in SiO2 Mesopores: Nonlinear Optics and Applications for Q-Switching Laser Operation

Contact Info

Product

Resources

About