Integrated device for graphene electro-optic modulation and one-dimensional photonic crystal nanobeam cavity wavelength division multiplexing

Pan, Wanle; Chen, Heming; Hu, Yuping

doi:10.1007/s00340-022-07814-x

Cited by 3 publications

(5 citation statements)

References 18 publications

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“…In contrast, the size of our proposed integrated device is 90 μm × 16 μm. Compared with our previous work, 18 the communication capacity of the integrated device is doubled, and it can realize EO modulation, WDM and MDM. In the future, the communication capacity can be further increased by increasing the number of channels.…”

Section: Performance Analysis Of the Integrated Devicementioning

confidence: 86%

“…a and b are the amplitudes of Cavity 2 and Cavity 3, respectively, and γj=γ due to the symmetry. Based on the temporal coupled mode theory, 20 the reflection efficiency R(ω), dropping efficiency D(ω) and transmission efficiency T(ω) are as follows: 18 R(ω)=|S+4S+1|2=|1−i8γ(ω0−ω)+16γ2[i(ω0−ω)+6γ][i(ω0−ω)+2γ]+4γ2|2,D(ω)=…”

Section: Theoretical Model and Working Principlementioning

confidence: 99%

“…The thickness h3 of the nanowire waveguides is 200 nm. The structural design of the EO modulator and WDM device has been described in previous work 18 . The structural design of the MDM device and integrated device is explained in the following subsections.…”

Section: Structural Design and Performance Analysismentioning

confidence: 99%

“…Therefore, one of the future development directions of optical communication systems is to integrate multiple devices with a single function to form a multifunctional integrated device. In our previous work, 18 an integrated device for EO modulation and WDM using graphene and one-dimensional photonic crystal was proposed. The ER is higher than 25.8 dB, and the IL is lower than 0.3 dB.…”

Section: Introductionmentioning

confidence: 99%

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Integrated device for electro-optic modulation and wavelength-mode division hybrid multiplexing based on graphene and photonic crystal

Pan

Chen

2022

Opt. Eng.

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.An integrated device for graphene electro-optic (EO) modulation and wavelength-mode division hybrid multiplexing (WMDM) is proposed. The device is composed of three parts: EO modulator, wavelength division multiplexer (WDM), and mode division multiplexer (MDM). The EO modulator and WDM consist of a one-dimensional photonic crystal nanobeam cavity coupled with a nanowire waveguide. The modulation of a certain wavelength can be achieved by utilizing the characteristic that the chemical potential of graphene can be adjusted with voltage. The MDM adopts nanowire waveguides to realize mode conversion. The performance parameters of the integrated device are analyzed using the three-dimensional finite-difference time-domain method of numerical analysis. The results show that the integrated device can simultaneously complete the modulation and WMDM of the fundamental transverse electric (TE0) modes and first-order TE (TE1) modes at 1570.0 and 1573.2 nm, respectively. The extinction ratio is greater than 23.2 dB, the insertion loss is <0.36 dB, and the channel crosstalk is < − 22.7 dB. In addition, the modulation speed reaches 18 GHz.

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Section: Performance Analysis Of the Integrated Devicementioning

confidence: 86%

Section: Theoretical Model and Working Principlementioning

confidence: 99%

Section: Structural Design and Performance Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integrated device for electro-optic modulation and wavelength-mode division hybrid multiplexing based on graphene and photonic crystal

Pan

Chen

2022

Opt. Eng.

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“…Photonic crystals have predominant performances such as flexibility in structure, ultra-small device sizes and low losses. The WDM is one of the most interesting fields of photonic crystals applications [20][21][22]. Multichannel filters play an important role in the WDM systems.…”

Section: Introductionmentioning

confidence: 99%

Multichannel filtering properties of one-dimensional graphene photonic crystals with high refractive index media layer

2023

Phys. Scr.

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Graphene photonic crystals have been attracting increasing attention due to their distinctive properties. In this work, the multichannel filtering performance of a one-dimensional graphene photonic crystal structure is theoretically investigated in the optical communication band. The graphene photonic crystal composed of a stack of alternating layers of dielectric material with high refractive index and graphene sheet. The influence of several structural parameters on the filtering performance of this structure was analyzed using the transfer matrix method. It is shown that the channel number and channel spacing of the multichannel filter can be adjusted by changing the period number and the dielectric constant and thickness of the high refractive index material. The multichannel filtering properties of this graphene structure have potential applications in wavelength division multiplexing systems.

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三信道石墨烯电光调制和模分复用集成器件

Wanle¹,

Heming²,

Yuchen³

2023

光子学报

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Integrated device for graphene electro-optic modulation and one-dimensional photonic crystal nanobeam cavity wavelength division multiplexing

Cited by 3 publications

References 18 publications

Integrated device for electro-optic modulation and wavelength-mode division hybrid multiplexing based on graphene and photonic crystal

Integrated device for electro-optic modulation and wavelength-mode division hybrid multiplexing based on graphene and photonic crystal

Multichannel filtering properties of one-dimensional graphene photonic crystals with high refractive index media layer

三信道石墨烯电光调制和模分复用集成器件

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