Integrated Space-Division Multiplexer for Application to Data Center Networks

Grieco, Andrew; Porter, George; Fainman, Yeshaiahu

doi:10.1109/jstqe.2015.2492361

Cited by 24 publications

(10 citation statements)

References 35 publications

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“…Minimizing f 3 cost would reduce the effect of return losses in the multimode waveguide, while minimizing f 4 cost would reduce the effect of reflection losses in the single-mode waveguide. On the other hand, maximizing both f 1 cost and f 2 cost would reduce the dependence of the wavelengths in both multimode and single-mode waveguides, respectively.…”

Section: Solution Of the Coupled-mode Equations And Gratings' Designmentioning

confidence: 99%

“…(21) has to be minimized, and the coefficient of the second term of fourth equation has to be minimized. Accordingly, f 4 cost is defined as in Eq. (29).…”

Section: Solution Of the Coupled-mode Equations And Gratings' Designmentioning

confidence: 99%

“…Space-division multiplexing techniques are promising candidates to meet increasingly required demand of high transmission rates in optical fibers and data centers [1][2][3][4]. One important scheme to achieve space-division multiplexing is to use multiple modes in few-mode fibers or multimode waveguides.…”

Section: Introductionmentioning

confidence: 99%

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Bidirectional mode-division multiplexers with antireflection gratings

Shalaby

2018

Appl. Opt.

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A bidirectional mode-division multiplexer (BMDM) with antireflection gratings is designed, and its performance in terms of S-parameters is presented. A BMDM can (de)multiplex three modes with only two waveguides and a Bragg grating. The impact of return losses on the performance of BMDMs is studied and antireflection gratings are designed to reduce their effects. A theoretical analysis of the proposed (de)multiplexer is developed based on the perturbative coupled-mode theory. Analytical expressions for the coupled-mode equations of the proposed device are obtained, taking into account the effects of return losses. Both duty cycle and teeth depths of the antireflection gratings are determined based on optimizing a cost function. In addition, FDTD simulation of the proposed device is performed, and its S-parameters are obtained and studied.

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Section: Solution Of the Coupled-mode Equations And Gratings' Designmentioning

confidence: 99%

“…(21) has to be minimized, and the coefficient of the second term of fourth equation has to be minimized. Accordingly, f 4 cost is defined as in Eq. (29).…”

Section: Solution Of the Coupled-mode Equations And Gratings' Designmentioning

confidence: 99%

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Bidirectional mode-division multiplexers with antireflection gratings

Shalaby

2018

Appl. Opt.

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“…If the number of sensors in a Smart City starts to increase, fast communication, and data processing is necessary for fast decision making. In this case, all technology that has been developed for fast, robust, and low power consumption optical interconnects in data centers can be applied on a FTTS network [73,79,80]. Here, central nodes that collect information from different sensors are the data centers.…”

Section: Advanced Photonic Technologies For Smart Citiesmentioning

confidence: 99%

Photonics for Smart Cities

Smalley¹,

Vallini²,

Amili³

et al. 2016

Smart Cities Technologies

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We review the current applications of photonic technologies to Smart Cities. Inspired by the future needs of Smart Cities, we then propose potential applications of advanced photonic technologies. We find that photonics already has a major impact on Smart Cities, in terms of smart lighting, sensing, and communication technologies. We further find that advanced photonic technologies could lead to vastly improved infrastructure, such as smart water-supply systems. We conclude by proposing directions for future research that will have the greatest impact on realizing Smart City initiatives.

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“…Multiple modes can be used in a few-mode fiber in order to achieve space-division multiplexing (SDM) [2]. In addition, SDM technology is also becoming attractive for optical interconnects in data centers [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Bi-Directional Coupler as a Mode-Division Multiplexer/Demultiplexer

Shalaby

2016

J. Lightwave Technol.

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A bi-directional coupler supported with Bragg grating is proposed as a mode-division multiplexer/demultiplexer. The structure can demultiplex 3 modes with only two waveguides and a Bragg grating. The input waveguide is multimode, while the output waveguide is single-mode. Both first-and second order modes of the input waveguide are coupled to the output waveguide, propagating at opposite directions, while the fundamental mode is kept in the input waveguide. A theoretical analysis of the proposed demultiplexer is developed based on the perturbative mode-coupled theory. The insertion losses of both first-and second order modes are derived under suitable phase-matched conditions. Expressions of the insertion losses are obtained for simple slab-waveguides coupler. Numerical results of the proposed demultiplexer are presented for the slabwaveguides coupler under different design parameters. Furthermore, the wavelength dependence of the device is addressed under mismatching conditions and a Lorentzian model of the Silicon material. In addition, FDTD simulation of proposed demultiplexer is performed to prove the validity of the proposed concept. Return loss due to reflection to the source is taken into consideration in the simulation in addition to the device wavelength dependence.

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Integrated Space-Division Multiplexer for Application to Data Center Networks

Cited by 24 publications

References 35 publications

Bidirectional mode-division multiplexers with antireflection gratings

Bidirectional mode-division multiplexers with antireflection gratings

Photonics for Smart Cities

Bi-Directional Coupler as a Mode-Division Multiplexer/Demultiplexer

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