Experimental demonstration of simultaneous mode and polarization-division multiplexing based on silicon densely packed waveguide array

Chen, Kaixuan; Wang, Siya; Chen, Sitao; Wang, Shipeng; Zhang, Chenzhao; Dai, Daoxin; Liu, Liu

doi:10.1364/ol.40.004655

Cited by 40 publications

(13 citation statements)

References 17 publications

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“…Among them, the on‐chip multi‐mode transmission offers a new dimension to scale the transmission bandwidth, which utilizes the multiple eigen‐modes in the multi‐mode waveguide to carry the independent signals simultaneously and efficiently enhance the link capacity for each wavelength channel . Numerous devices have been demonstrated to realize the on‐chip multi‐mode communication system, including multi‐mode waveguide crossing, multi‐mode 3‐dB power splitters, the MDM switches and the mode (de)multiplexers . However, the application is still quite limited for the multi‐mode transmission, since the multi‐mode waveguide can't be compactly routed, especially in the sharp bending region.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐Sharp Multi‐Mode Waveguide Bending Assisted with Metamaterial‐Based Mode Converters

Shi

2018

Laser & Photonics Reviews

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On-chip multi-mode communication has attracted much attention for its potential to greatly expand the bandwidth of data transmission. However, the application of multi-mode transmission is still restricted since the multi-mode waveguide can't be compactly routed, especially in the sharp bending region. The challenge lies in decreasing the significant inter-mode coupling in the multi-mode bending with a small radius. Few works have been reported to achieve multi-mode bending, but all suffer from the complex fabrication. In this paper, an ultra-sharp multi-mode waveguide is proposed, which is assisted with metamaterial-based mode converters. The sub-wavelength structures are directly written onto the polymer cladding. By engineering the effective medium index of the metamaterial cladding in the mode converters, the inter-mode coupling is dramatically inhibited. The fabricated sharp bending with a 30-μm radius shows that the crosstalk is <−20 dB and the loss is <1 dB over a >80 nm wavelength band.

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Section: Introductionmentioning

confidence: 99%

Ultra‐Sharp Multi‐Mode Waveguide Bending Assisted with Metamaterial‐Based Mode Converters

Shi

2018

Laser & Photonics Reviews

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“…There are many research efforts involved in multicore mode MUXs. A compact solution of five modes (three transverse electric modes and two transverse magnetic modes) guided is realized in three waveguides having an ultra-narrow gap of 100 nm and a DPWA bus waveguide width of 1.58 µm [70]. Song et al [71] studied a special waveguide array with sub-array works as the DPWA structure.…”

Section: Mode Muxs For Multicorementioning

confidence: 99%

Silicon chip-scale space-division multiplexing: from devices to system

Sun

Zhang

2018

Sci. China Inf. Sci.

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Space-division multiplexing (SDM) technique has attracted increasing attentions recently, because it provides an effective way to increase transmission capacity. With the continuous and exponential increase in data demands, high-density integration of silicon photonic components is of significant interest in terms of link price, performance and power consumption. The multimode/mutlicore devices applied to achieve diverse functionalities are key building blocks to construct a chip-scale SDM system based on a silicon on insulator (SOI) platform. This study reviews the recent progress of multimode/multicore devices, which enable coupling, multiplexing/demultiplexing, transmitting switching, as well as modulation and detection. Based on these devices, a complete on-chip SDM system is constructed and discussed.

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“…1(b), is distributed in the corresponding single waveguide due to large difference in the effective refractive index of each single-waveguide mode. Therefore, a simple taper can be used as mode (de)multiplexer to separate different DPWA modes to individual single mode waveguides [16], [17]. One can even directly bend the DPWA-based bus with 45 μm radius for three modes [16].…”

Section: Introductionmentioning

confidence: 99%

Mode Division Multiplexing Based on Supermodes in Densely Packed Uniform Waveguide Array (DPUWA)

Chen

Liu

2020

IEEE Photonics J.

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A multimode bus structure consisting of densely packed uniform waveguide array (DPUWA) with a narrow gap of 150 nm is proposed. A compact and robust mode converter between DPUWA and a conventional wide multimode waveguide is designed with an insertion loss of <0.05 dB and crosstalk of <−20 dB in a wide wavelength range for three TE and three TM modes. Supermodes in the DPUWA can be routed and processed just like the mode in a single-mode waveguide by simply expanding the gap without any mode (de)multiplexer. Based on such ideas, compact DPUWA crossing/bending structures with losses of <0.2/0.09 dB and crosstalks of <−34/−30 dB for three TE modes are achieved.

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Experimental demonstration of simultaneous mode and polarization-division multiplexing based on silicon densely packed waveguide array

Cited by 40 publications

References 17 publications

Ultra‐Sharp Multi‐Mode Waveguide Bending Assisted with Metamaterial‐Based Mode Converters

Ultra‐Sharp Multi‐Mode Waveguide Bending Assisted with Metamaterial‐Based Mode Converters

Silicon chip-scale space-division multiplexing: from devices to system

Mode Division Multiplexing Based on Supermodes in Densely Packed Uniform Waveguide Array (DPUWA)

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