Ultrafast GaN/AlN modulator based on quantum dot for terabit all-optical communication

Rahmani, Ali Reza; Rostami, Ali; Saghai, H. Rasooli; Moravvej-Farshi, Mohammad Kazem

doi:10.1016/j.ijleo.2014.01.175

Cited by 11 publications

(8 citation statements)

References 23 publications

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“…According to our last work [12], to analyze the behavior of all-optical modulator and extract the electronic and optical properties of this device based on multilayer spherical quantum dots in AlN/GaN structure ( Fig. 1), we used self-consistent solution of Schrodinger and Poisson equations considering effective mass approximation regard to slowly varying envelope in spherical coordinates.…”

Section: Mathematical Backgroundmentioning

confidence: 99%

“…After creating the 4-level structure and inserting pump, probe and also control signal to apply electromagnetically induced transparency (EIT) to enhance the modulator speed ( Fig. 3), the corresponding time evolution density matrix equations for four-level system is considered as [12]: absorption, transmission and modulation depth, the linear susceptibility is calculated. The absorption is related to the imaginary section of linear susceptibility.…”

Section: Mathematical Backgroundmentioning

confidence: 99%

“…The absorption is related to the imaginary section of linear susceptibility. All the equations, flowchart, tables and related items were presented in detail in our last work [12].…”

Section: Mathematical Backgroundmentioning

confidence: 99%

“…(a) Two-dimentional profile for a multilayer spherical quantum dot and (b) related potential profile along the QD radius[12].…”

mentioning

confidence: 99%

“…Energy diagram of spherical quantum dot structure in conduction band along the QD radius. (The barriers are from n-doped AlN and the wells are GaN)[12].…”

mentioning

confidence: 99%

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Waveguide Designing for Absorbing Modulator in Gan/Aln Structure for All Optical Networking

Rahmani¹,

Rostami²

2018

PIER M

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In this paper a waveguide is introduced as an absorbing modulator using GaN/AlN structure based on spherical quantum dots. The role of waveguide (modulator) dimensions on optical profile of light in the channel and coupling efficiency is also investigated. These parameters can affect the main characteristics of modulator like absorption and depth of modulation. First we will give a brief explanation about the all optical modulator structure based on spherical quantum dots and its optical properties. Then the electrical fields in optical fiber and modulator will be introduced, and the effects of dimensions on these fields will be discussed. The results show that the electric field distribution determines the insertion loss and also effects on modulation. Finally we will determine the proper dimensions of modulator for coupling to optical fiber.

show abstract

Section: Mathematical Backgroundmentioning

confidence: 99%

Section: Mathematical Backgroundmentioning

confidence: 99%

“…The absorption is related to the imaginary section of linear susceptibility. All the equations, flowchart, tables and related items were presented in detail in our last work [12].…”

Section: Mathematical Backgroundmentioning

confidence: 99%

“…(a) Two-dimentional profile for a multilayer spherical quantum dot and (b) related potential profile along the QD radius[12].…”

mentioning

confidence: 99%

“…Energy diagram of spherical quantum dot structure in conduction band along the QD radius. (The barriers are from n-doped AlN and the wells are GaN)[12].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Waveguide Designing for Absorbing Modulator in Gan/Aln Structure for All Optical Networking

Rahmani¹,

Rostami²

2018

PIER M

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Convert from Fano resonance to electromagnetically induced transparency effect using anti-symmetric H-typed metamaterial resonator

Wang

Lou

et al. 2020

Opt Quant Electron

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Electric field effect on the quadratic electro optic effects and electro absorption process in GaN/AlGaN spherical quantum dot

Kouhi

2016

Optik

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Ultrafast GaN/AlN modulator based on quantum dot for terabit all-optical communication

Cited by 11 publications

References 23 publications

Waveguide Designing for Absorbing Modulator in Gan/Aln Structure for All Optical Networking

Waveguide Designing for Absorbing Modulator in Gan/Aln Structure for All Optical Networking

Convert from Fano resonance to electromagnetically induced transparency effect using anti-symmetric H-typed metamaterial resonator

Electric field effect on the quadratic electro optic effects and electro absorption process in GaN/AlGaN spherical quantum dot

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