The Orbital Angular Momentum of Light for Next Generation Optical Switches

Scaffardi, M.; Malik, M. N.; Zhang, N.; Rydlichowski, Piotr; Toccafondo, V.; Klitis, Charalambos; Lavery, Martin P. J.; Zhu, Jiangbo; Cai, Xinlun; Yu, Seulgi; Preve, G. B.; Sorel, Marc; Bogoni, Antonella

doi:10.1109/ecoc.2018.8535424

Cited by 2 publications

(6 citation statements)

References 10 publications

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“…Multicasting Extended communication link [95][96][97][98][99][100][101][102][103][104][105][106][107][108][109][110][111][112] Switching Exchanging data [113][114][115][116][117][118][119][120][121][122][123][124][125][126][127] Filtering Extracting specific channel [128][129][130][131][132][133][134][135][136][137][138][139][140] Hopping Anti-interference [141][142][143][144]…”

Section: Oam-rd Schematic Diagram Function Referencementioning

confidence: 99%

“…Exchanging data [113][114][115][116][117][118][119][120][121][122][123][124][125][126][127] Filtering…”

Section: Oam Channel Multicastingmentioning

confidence: 99%

“…OAM switcher can now switch data between multiple composite beams [125][126][127]. With the development of OAM-RD, the flexible control of the OAM mode carried by multiplexed beams and the practicability of OAM communication links have been greatly improved, which lays a foundation for the research of OAM-RD.…”

Section: Oam Channel Switchingmentioning

confidence: 99%

“…Table 3 summarizes the works reported to date for the channel-switching routers in OAM-based optical communication. Although the reported works above achieved promising results, a significant breakthrough in OAM switching was reported by Scaffardi et al in 2023, reporting a 10 OAM × 16 wavelengths two-layer switch for 19.2 Tb/s data traffic using an integrated mode multiplexer [127]. They employed a 16-channel wavelength division multiplexing (WDM) grid, which enabled the switch to receive 160 optical Gaussian data inputs and route each input signal to a distinct output port, all of which take advantage of 10 OAMs.…”

Section: Oam Channel Switchingmentioning

confidence: 99%

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Research Progress on Router Devices for the OAM Optical Communication

Wang,

Zhang,

Tian

et al. 2024

Sensors

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Vortex beams carrying orbital angular momentum (OAM) provide a new degree of freedom for light waves in addition to the traditional degrees of freedom, such as intensity, phase, frequency, time, and polarization. Due to the theoretically unlimited orthogonal states, the physical dimension of OAM is capable of addressing the problem of low information capacity. With the advancement of the OAM optical communication technology, OAM router devices (OAM-RDs) have played a key role in significantly improving the flexibility and practicability of communication systems. In this review, major breakthroughs in the OAM-RDs are summarized, and the latest technological standing is examined. Additionally, a detailed account of the recent works published on techniques related to the OAM-RDs has been categorized into five areas: channel multicasting, channel switching, channel filtering, channel hopping, and channel adding/extracting. Meanwhile, the principles, research methods, advantages, and disadvantages are discussed and summarized in depth while analyzing the future development trends and prospects of the OAM-RDs.

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Section: Oam-rd Schematic Diagram Function Referencementioning

confidence: 99%

“…Exchanging data [113][114][115][116][117][118][119][120][121][122][123][124][125][126][127] Filtering…”

Section: Oam Channel Multicastingmentioning

confidence: 99%

Section: Oam Channel Switchingmentioning

confidence: 99%

Section: Oam Channel Switchingmentioning

confidence: 99%

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Research Progress on Router Devices for the OAM Optical Communication

Wang,

Zhang,

Tian

et al. 2024

Sensors

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“…In [24] an OAM-wavelength switch with 10 input ports exploiting an integrated OAM multiplexer with 10 concentric emitters is characterized, showing an improved switching time. Performance with real data traffic has been reported briefly in [25].…”

Section: Introductionmentioning

confidence: 99%

10 OAM × 16 Wavelengths Two-Layer Switch Based on an Integrated Mode Multiplexer for 19.2 Tb/s Data Traffic

Scaffardi

Malik

Zhang

et al. 2021

J. Lightwave Technol.

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A two-layer switch exploiting orbital angular momentum (OAM) and wavelength of the light as switching domains is presented, aiming to increase the scalability with respect to the single-layer switches. The switch is able to accept 160 optical Gaussian data inputs on a 16-channel wavelength division multiplexing (WDM) grid and direct each input signals to different output ports exploiting 10 OAMs. The optical switch is based on an integrated OAM multiplexer followed by a compact OAM demultiplexer consisting of two refractive elements. Its experimental characterization confirmed a total enabled throughput of 19.2 Tb/s, thanks to the 30 GHz bandwidth available for each port. The switching time can be lower than 1 µs. The OAM switch power consumption, solely due to the thermal tuning of the OAM emitters, since the OAM demux is passive, is 1.35 mW/Gb/s.In the proposed switching architecture the number of active components, i.e. the power consumption, scales linear with the number of ports. This is favorable in comparison with singlelayer switches that cascade e.g. 2x2 elementary blocks to obtain large port counts, which scale with the square of the number of ports.The switch accepts input and output signals with Gaussian phase profile that propagate through optical fibers and waveguides, thus making it compatible with standard telecom devices. The suitability of the switch to support real data-traffic is proved by successfully testing it with 10G Ethernet and Fiber Channel over Ethernet (FCoE) data traffic and video traffic. A possible application scenario is represented by a data-center network where the switch can be used to create a low-power consumption network parallel to the network based on standard electronic routers, to manage large traffic flows.

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The Orbital Angular Momentum of Light for Next Generation Optical Switches

Cited by 2 publications

References 10 publications

Research Progress on Router Devices for the OAM Optical Communication

Research Progress on Router Devices for the OAM Optical Communication

10 OAM × 16 Wavelengths Two-Layer Switch Based on an Integrated Mode Multiplexer for 19.2 Tb/s Data Traffic

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