118.5 Tbit/s transmission over 316 km-long multi-core fiber with standard cladding diameter

Matsui, Takashi; Kobayashi, T.; Kawahara, Hiroyuki; Gabory, Emmanuel Le Taillandier de; Nagashima, Toru; Nakanishi, Tetsuya; Saitoh, Setsuo; Amma, Yoshimichi; Maeda, Koichi; Arai, Shigeo; Nagase, Ryo; Albe, Y.; Aozasa, Shinichi; Wakayama, Yuki; Takeshita, Hitoshi; Tsuritani, Takehiro; Ono, Hirotaka; Sakamoto, Taiji; Morita, Itsuro; Miyamoto, Yutaka; Nakajima, Kazuhide

doi:10.1109/oecc.2017.8115049

Cited by 57 publications

(15 citation statements)

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“…This fiber has 4 cores in a rectangular arrangement within a cladding with a diameter of 125 μm. Its propagation characteristics, tensile strengh and productivity are similar to those of standard fibers [33]. As such, it is a good candidate for future MCF deployments in long distance links.…”

Section: B Xt-conditioned Wavelength Dependent Performancementioning

confidence: 83%

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Crosstalk Impact on the Performance of Wideband Multicore-Fiber Transmission Systems

Luís

Rademacher

Puttnam

et al. 2020

IEEE J. Select. Topics Quantum Electron.

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This work presents an evaluation of the crosstalk impact on the signal-to-noise ratio (SNR) of long-distance C and L band wavelength-division multiplexing (WDM) systems using homogeneous multicore fibers with weakly coupled cores. It is experimentally shown that the crosstalk-induced SNR penalty is independent of the transmission distance on sufficiently long uniform links. This results from the approximately linear scaling of the noise contributions from amplified spontaneous emission, fiber nonlinearity, and crosstalk with the transmission distance. The crosstalk-induced SNR penalty on C and L band WDM long distance links is experimentally evaluated, showing significant degradation of signals located towards the long edge of the L-band. Up to 3.8 dB penalty was observed on a 3866 km link, in agreement with theoretical predictions. We perform a theoretical analysis of the wavelength allocation of densely packed channels for long distance WDM systems with and without the presence of crosstalk. It is shown that these systems favor the use of relatively short transmission wavelength ranges to minimize the crosstalk impact at long wavelengths. This contrasts with systems without crosstalk, which favor the low loss wavelength region of the transmission fiber. Index Terms-Spatial division multiplexing (SDM), multicore fiber (MCF), crosstalk, wavelength-division multiplexing (WDM).

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Section: B Xt-conditioned Wavelength Dependent Performancementioning

confidence: 83%

“…In this section, the performance analysis will be based on an existing fiber. We have selected the MCF initially presented in [33]. This fiber has 4 cores in a rectangular arrangement within a cladding with a diameter of 125 μm.…”

Section: B Xt-conditioned Wavelength Dependent Performancementioning

confidence: 99%

Crosstalk Impact on the Performance of Wideband Multicore-Fiber Transmission Systems

Luís

Rademacher

Puttnam

et al. 2020

IEEE J. Select. Topics Quantum Electron.

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“…The pitch of cores in a multicore can vary substantially from the specified pitch due to inconsistencies in the manufacturing processes. Typical variations (or offsets) from the desired pitch are in the range 0.1 µm to 1 µm, with larger pitches typically exhibiting greater uncertainty [24], [25]. Since a core offset, whether on the input or output fibre, simply shifts the core image by the same amount on the exit fibre end face, the loss is independent of wavelength, MFD or core pitch (or ρ).…”

Section: Switch Geometrymentioning

confidence: 99%

Design and Analysis of Beam Steering Multicore Fiber Optical Switches

Deakin

Enrico

Parsons

et al. 2019

J. Lightwave Technol.

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The design and performance characteristics of a beam steering optical switch for multicore fibers (MCFs) are reported. Port count, core count, transmission crosstalk or a combination thereof can be optimized for the required application. Decreasing port separation or increasing the maximum steering angle both increase port count, whilst a higher core count or larger mode field diameter increase port capacity or port count respectively at the expense of greater intercore crosstalk. Potential losses from system misalignments and fiber fabrication variations in the core pitch are also estimated. A 50 port switch is possible for a 25 µm core pitch 7 core hexagonal trench assisted MCF (TA-MCF) with a total mean statistical crosstalk on the central core of-25 dB after 1 km, assuming a operational wavelength of 1550 nm and maximum collimator actuator angle of 10 degrees. In contrast, a high capacity 25 µm core pitch 61 core hexagonal TA-MCF can still offer up to a 5 port switch for the same level of crosstalk. For longer link distances,-25 dB crosstalk after 100 km (metro network) is achievable for a 50 port switch using a 35 µm core pitch 7 core TA-MCF. Similar levels of crosstalk can be accomplished at 1000 km (core network) for a 41 port switch using a 35 µm core pitch 7 core TA-MCF.

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“…Interconnectivity among standard cladding MCFs fabricated from several manufacturers was demonstrated for the first time in 2017 and transmission in excess of 100 Tbit/s was successfully achieved over a 316 km full SDM link composed of standard cladding MCFs [13], highly efficient MC-EDFAs [14][15][16] and MCF connectors [17,18]. The experiments also indicated that a four-core fiber with trench-assisted profile fully compatible with SMF could achieve 100 Pbit/s•km transmission [19].…”

Section: Introductionmentioning

confidence: 99%