Integrated device for cyclic mode permutation based on multi-plane light conversion

Tang, Yunpeng; Yang, Zhiqun; Wang, Yang; Liu, Yaping; Zhang, Lin

doi:10.1364/oecc.2021.w4f.4

Cited by 1 publication

(1 citation statement)

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“…In our experiment, the measured loss of the MUX/DEMUX varied between 3.4 dB and 4.5 dB depending on spatial modes for each device at 1550 nm. The issue can be addressed by introducing mode permutation devices with lower loss [17], [18] or implementing higher SNR enabling amplification schemes, such as distributed Raman amplification [19], [20]. These approaches can help mitigate the SNR deterioration caused by the insertion of additional MUX/DEMUX pairs, thereby potentially extending the achievable transmission reach.…”

Section: Resultsmentioning

confidence: 99%

10-Spatial-Mode 1300-Km Transmission Over 6-LP Graded Index Few-Mode Fiber With 36-Ns Modal Dispersion

Shibahara,

Hoshi,

Miyamoto

2024

J. Lightwave Technol.

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We demonstrate a record-long 10-mode-multiplexed transmission over 1300 km using a 6-LP few-mode fiber (FMF). Long-haul mode-division-multiplexed (MDM) transmission systems face challenges posed by the pulse broadening effect caused by differential mode delay (DMD), which hampers performance and increases computational complexity for receiver-side multiple-input multiple-output digital signal processing (MIMO-DSP) to mitigate mode mixing effects. In this study, we extend the application of mode permutation techniques, specifically the cyclic mode-group permutation (CMGP), as a solution to address these performance limitations in 10-spatial-mode-multiplexed long-haul transmission. We present experimental results conducted over a 6-LP graded-index (GI) FMF, demonstrating the effectiveness of CMGP in improving spatial channel coupling and reducing pulse spreading with comparisons with several CMGPadopted configurations. The introduction of CMGP realized a modal-dispersion-unmanaged link, even when employing a 6-LP FMF with a modal dispersion coefficient of 157 ps/km, achieving the world's longest 1300-km transmission utilizing 10 spatial modes while reducing the impact of the modal dispersion accumulation by 82 % Index Terms-Space division multiplexing (SDM), Mode division multiplexing (MDM), Differential modal dispersion (DMD), Cyclic mode-group permutation (CMGP)

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Section: Resultsmentioning

confidence: 99%

10-Spatial-Mode 1300-Km Transmission Over 6-LP Graded Index Few-Mode Fiber With 36-Ns Modal Dispersion

Shibahara,

Hoshi,

Miyamoto

2024

J. Lightwave Technol.

View full text Add to dashboard Cite

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Integrated device for cyclic mode permutation based on multi-plane light conversion

Abstract: We propose an integrated device based on multi-plane light conversion (MPLC) for cyclic mode permutation (CMP). Both 3-mode and 6-mode CMP schemes are demonstrated with excellent simulated performance.

Cited by 1 publication

References 2 publications

10-Spatial-Mode 1300-Km Transmission Over 6-LP Graded Index Few-Mode Fiber With 36-Ns Modal Dispersion

10-Spatial-Mode 1300-Km Transmission Over 6-LP Graded Index Few-Mode Fiber With 36-Ns Modal Dispersion

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