Experimental demonstration of 6-mode division multiplexed NG-PON2: Cost effective 40 Gbit/s/spatial-mode access based on 3D laser inscribed photonic lanterns

Asif, Rameez; Hu, Hao; Mitchell, Paul; MacDonald, John R.; Ros, Francesco Da; Psaila, N. D.; Ye, Feihong; Oxenløwe, Leif Katsuo; Morioka, Toshio

doi:10.1109/ecoc.2015.7341921

Cited by 8 publications

(5 citation statements)

References 11 publications

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“…The main issue with next generation high capacity MCF transmission is, how we can increase the number of cores (thus, total capacity) while keeping the inter-core crosstalk (XT) low to allow error free and longer transmission distance since more dense cores (smaller core pitch Λ) normally increase the modes coupling among cores [25]. As a first step, we compared the XT behavior of 7-, 12-and 19-core MCF in the wavelength region of 1550 nm and 1310 nm, as summarized in Fig.…”

Section: Wavelength Dependent Cross-talk (Xt) In Mcfmentioning

confidence: 99%

“…1, that is which is going to be standardized in the ITU-T recommendation G.989 series [15]. Recently, we have demonstrated the first NG-PON2 SDM based network architecture by transmitting 6-modes each carrying 40 Gbit/s data for symmetric downstream (DS) and upstream (US) traffic [16]. Furthermore, it is also demonstrated that a distributed light source bank can be used for a colorless optical network unit (ONU) operation that will make wavelength management in NG-PON2 network much more easier and energy efficient [17].…”

Section: Introductionmentioning

confidence: 99%

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Quantum encrypted signals on multiuser optical fiber networks: Simulation analysis of next generation services and technologies

Asif

2017

2017 8th International Conference on the Network of the Future (NOF)

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Data encryption is gaining much attention these days from the research community and industry for transmitting secure information over access networks, i.e. 'fiber-to-the-home (FTTH)' networks and data centers. It is important that the newly designed encrypted networks are fully functional, reconfigurable, compatible, flexible and scalable with the existing deployed optical fiber networks around the globe. The prime benefit of having FTTH networks is the optical end-to-end data encryption that can best be implemented by quantum-keydistribution (QKD) protocols using state-of-the-art telecommunication components, i.e. continuous-variable quantum key distribution (CV-QKD). In this paper, we numerically investigate the quadrature phase shift keying (QPSK) based CV-QKD network that is compatible with the next generation (NG) services such as point-to-point (P2P) transmission and multicast overlay (MCO) traffic for audio/video signalling. We have further investigated the performance of quantum signals on multiuser fibers by emulating 7-, 12-and 19-core multi-core fibers (MCF). 100 Mbits/s secure key rates (SKRs) can be generated for inter-core crosstalk (XT) values of ≤-20 dB. These results and theoretical framework will allow the telecommunication industry to extend these scenarios not only to accommodate more complex trust constraints, but also to take into account the robustness and resiliency of a complex encrypted network.

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Section: Wavelength Dependent Cross-talk (Xt) In Mcfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantum encrypted signals on multiuser optical fiber networks: Simulation analysis of next generation services and technologies

Asif

2017

2017 8th International Conference on the Network of the Future (NOF)

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“…Record transmission capacity of 2.15 Pbit/s 36 and 2.05 Pbit/s has been demonstrated 37 . As compared to few-mode-fiber (FMFs) 38 39 40 41 , MCFs can provide a smooth transition from existing SMF networks to SDM due to the availibity of off-the-shelf transceivers 42 . To achieve >Pbit/s or Ebit/s transmission, the future road-map leads to the manufacturing of ultra dense cores in a single cladding 43 44 .…”

Section: State Of the Artmentioning

confidence: 99%

Advanced and flexible multi-carrier receiver architecture for high-count multi-core fiber based space division multiplexed applications

Asif

2016

Sci Rep

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Space division multiplexing (SDM), incorporating multi-core fibers (MCFs), has been demonstrated for effectively maximizing the data capacity in an impending capacity crunch. To achieve high spectral-density through multi-carrier encoding while simultaneously maintaining transmission reach, benefits from inter-core crosstalk (XT) and non-linear compensation must be utilized. In this report, we propose a proof-of-concept unified receiver architecture that jointly compensates optical Kerr effects, intra- and inter-core XT in MCFs. The architecture is analysed in multi-channel 512 Gbit/s dual-carrier DP-16QAM system over 800 km 19-core MCF to validate the digital compensation of inter-core XT. Through this architecture: (a) we efficiently compensates the inter-core XT improving Q-factor by 4.82 dB and (b) achieve a momentous gain in transmission reach, increasing the maximum achievable distance from 480 km to 1208 km, via analytical analysis. Simulation results confirm that inter-core XT distortions are more relentless for cores fabricated around the central axis of cladding. Predominantly, XT induced Q-penalty can be suppressed to be less than 1 dB up-to −11.56 dB of inter-core XT over 800 km MCF, offering flexibility to fabricate dense core structures with same cladding diameter. Moreover, this report outlines the relationship between core pitch and forward-error correction (FEC).

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“…However, both the two ways suffer from large losses. Instead, recent works on photonic lantern (PL) make mode multiplexing much simpler and more practical due to its low loss and compactness [16][17][18][19][20][21], which directly converts N SMFs into N modes of a MMF, and vice versa. Currently, there includes two fabrication techniques for PL: All-fiber PL and ultrafast laser inscription (ULI) three-dimensional (3D) waveguide PL [17].…”

Section: Introductionmentioning

confidence: 99%

“…The former one needs manual assembly fiber that makes it challenging to scale up to larger number of modes, while the latter one is fully automated providing accurate layout control, therefore it is much easier to support more modes without significantly increasing the fabrication cost [18]. Over recent years, 3D-waveguide PL supporting 3-spatial-mode (LP01, 2xLP11) [19], 6-spatial-mode (LP01, 2xLP11, 2xLP21 and LP02) [19,20] and 15-spatialmode (LP01, 2xLP11, 2xLP21, LP02, 2xLP31, 2xLP12, 2xLP41, 2xLP22 and LP03) [18,19], have been developed successively. These allow the system to be flexibly upgraded to support more spatial streams without dramatically increasing insertion loss and system cost, and retain the deployed fiber resources by only replacing the mode Mux/DeMux in the central office (CO) and RAUs.…”

Section: Introductionmentioning

confidence: 99%

Space-division-multiplexed transmission of 3x3 multiple-input multiple-output wireless signals over conventional graded-index multimode fiber

Lei

Fan

et al. 2016

Opt. Express

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In this paper, we experimentally demonstrate space-division-multiplexed (SDM) transmission of IEEE 802.11ac-compliant 3-spatial-stream WLAN signals over 3 spatial modes of conventional 50um graded-index (GI) multimode fiber (MMF) employing non-mode-selective 3D-waveguide photonic lantern. Two kinds of scenarios, including fiber-only transmission and fiber-wireless hybrid transmission, were investigated by measuring error vector magnitude (EVM) performance for each stream and condition number (CN) of the channel matrix. The experimental results show that, SDM-based MMF link could offer a CN< 20dB well-conditioned MIMO channel over up to 1km fiber length within 0-6GHz, achieving as low as 2.38%, 2.97% and 2.11% EVM performance for 1km MMF link at 2.4GHz, 5.8GHz, and 200m MMF link followed by 1m air distance at 2.7GHz, respectively. These results indicate the possibility to distribute wireless MIMO signals over existing in-building commercially-available MMFs with enormous cost-saving.

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Experimental demonstration of 6-mode division multiplexed NG-PON2: Cost effective 40 Gbit/s/spatial-mode access based on 3D laser inscribed photonic lanterns

Cited by 8 publications

References 11 publications

Quantum encrypted signals on multiuser optical fiber networks: Simulation analysis of next generation services and technologies

Quantum encrypted signals on multiuser optical fiber networks: Simulation analysis of next generation services and technologies

Advanced and flexible multi-carrier receiver architecture for high-count multi-core fiber based space division multiplexed applications

Space-division-multiplexed transmission of 3x3 multiple-input multiple-output wireless signals over conventional graded-index multimode fiber

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