Silicon mode multi/demultiplexer based on multimode grating-assisted couplers

Qiu, Huiye; Hu, Ting; Jiang, Guannan; Shao, Haifeng; Yu, Ping; Yang, Jianyi; Jiang, Xiaoqing

doi:10.1364/oe.21.017904

Cited by 162 publications

(50 citation statements)

References 10 publications

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“…[30] Later a grating-assisted ADC was also designed to realize 4-channel narrow-band mode multiplexer. [31] The ADC-based mode (de)multiplexers have also been used to realize hybrid (de)multiplexers by integrating with other WDM devices. For example, a three-channel multiplexer combining ADCs and microrings for simultaneous MDM and WDM has been realized to expand the link capacity.…”

Section: Doi: 101002/lpor201700109mentioning

confidence: 99%

10‐Channel Mode (de)multiplexer with Dual Polarizations

Dai

Wang

et al. 2017

Laser & Photonics Reviews

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244

107

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A dual-polarization 10-channel mode (de)multiplexer is proposed and realized with cascaded dual-core adiabatic tapers on a silicon-on-insulator (SOI) platform. The mode demultiplexer has a 2.3 μm-wide multimode bus waveguide, which supports six mode-channels of TE polarization and four mode-channels of TM polarization. These ten mode-channels are (de)multiplexed with five cascaded dual-core adiabatic tapers based on SOI nanowires. The widths for these dual-cores are chosen optimally according to the dispersion curves of the dual-core SOI nanowire, so that the desired highest-order modes of TE-and TM-polarizations are extracted simultaneously. These two extracted mode-channels are coupled very efficiently to the fundamental modes of TE-and TM-polarizations (TE 0 and TM 0 ) in the narrow waveguide, respectively, which are then separated by using a polarization beam splitter based on bent directional couplers. A chip consisting of a pair of 10-channel mode (de)multiplexers is fabricated and then tested with data transmission of 30Gbps/channel. The measurement results show that all TM-and TE mode-channels have low crosstalks (-15ß-25 dB) and low excess losses (0.2ß1.8 dB) over a broad wavelength band of ß90 nm, which makes it WDM (wavelength-division-multiplexing)-compatible and thus suitable for high capacity on-chip optical interconnects.

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Section: Doi: 101002/lpor201700109mentioning

confidence: 99%

10‐Channel Mode (de)multiplexer with Dual Polarizations

Dai

Wang

et al. 2017

Laser & Photonics Reviews

Self Cite

244

107

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“…1(c). The mode converter-(de)multiplexer can be realized by using an evanescent coupling system designed carefully [28][29][30]. Recently some progress has been made on mode converter-(de)multiplexers based on planar optical waveguides, which will be reviewed below.…”

Section: The Configuration For a Multimode Sdm Optical-interconnect Lmentioning

confidence: 99%

“…[27], we have previously proposed and demonstrated a 4-channel silicon mode converter-multiplexer operating for TM polarization with low loss, low crosstalk as well as small footprint. Recently a gratingassist ADC was designed to construct a 4-channel narrow-band mode converter-multiplexer [28]. In Ref.…”

Section: Mode Converter-multiplexermentioning

confidence: 99%

Silicon Multimode Photonic Integrated Devices for on-Chip Mode-Division-Multiplexed Optical Interconnects

Dai¹,

Jian²,

He³

2013

PIER

113

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Abstract-Multimode spatial-division multiplexing (SDM) technology has attracted much attention for its potential to enhance the capacity of an optical-interconnect link with a single wavelength carrier. For a mode-multiplexed optical-interconnect link, the functional elements are quite different from the conventional ones as multiple modes are involved. In this paper we give a review and discussion on multimode photonic integrated devices for mode-multiplexed opticalinterconnects. Light propagation and mode conversion in tapered waveguides as well as bent waveguides are discussed first. Recent progress on mode converter-(de)multiplexers is then reviewed. The demands of some functional devices used for mode-multiplexed opticalinterconnects are also discussed. In particular, the fabrication tolerance is analyzed in detail for our hybrid demultiplexer, which enables mode-/polarization-division-(de)multiplexing simultaneously.

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“…Ding et al have demonstrated an on-chip two-mode division multiplexing circuit using a tapered directional coupler-based TE 0 and TE 1 mode multiplexer and demultiplexer on the silicon-on-insulator platform [6]. In [7], Dai mode (de)multiplexer based on multimode grating-assistedcouplers has been proposed in [8]. Luo et al have shown the first microring-based on-chip WDM-compatible mode-division multiplexing with low modal crosstalk and loss [11].…”

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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Silicon mode multi/demultiplexer based on multimode grating-assisted couplers

Cited by 162 publications

References 10 publications

10‐Channel Mode (de)multiplexer with Dual Polarizations

10‐Channel Mode (de)multiplexer with Dual Polarizations

Silicon Multimode Photonic Integrated Devices for on-Chip Mode-Division-Multiplexed Optical Interconnects

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

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