Abstract

We demonstrate the first 7-core multicore erbium-doped fiber amplified (MC-EDFA) transmission of 40 x 128-Gbit/s PDM-QPSK signals over 6,160-km 7-core multicore fiber (MCF). The crosstalk (XT) from all of the other 6 cores of a MC-EDFA and a 55-km length MCF are about −46.5 dB and −45.6 dB at center core, respectively. The core-to-core rotation approach at every amplified span is used to average the XT of all cores. The averaged optical signal-to-noise ratio (OSNR) after 6,160-km transmission is 15.6 dB with 0.1 nm resolution bandwidth. The Q-factor of all 40 channels surpasses the threshold of the forward-error-correction of 6.4 dB with 1 dB margin after 6,160 km. The total net capacity is 28.8 Tbit/s per fiber and achieved capacity-distance product is 177 Pbit/s.km per fiber. We confirmed the feasibility of MC-EDFA repeatered systems for trans-oceanic transmission.

© 2013 OSA

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References

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  1. M. Mazurczyk, D. G. Foursa, H. G. Batshon, H. Zhang, C. R. Davidson, J.-X. Cai, A. Pilipetskii, G. Mohs, and Neal S. Bergano, “30 Tb/s Transmission over 6,630 km Using 16QAM Signals at 6.1 bits/s/Hz Spectral Efficiency,” ECOC2012, Th.3.C.2.
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  4. R.Ryf, R. Essiambre, A. Gnauck, S. Randel, M. A. Mestre, C. Schmidt, P. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, T. Hayashi, T. Taru, and T. Sasaki, “Space-Division Multiplexed Transmission over 4200 km 3-Core Microstructured Fiber,” OFC/NFOEC2012, PDP5C.2.
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Other (9)

M. Mazurczyk, D. G. Foursa, H. G. Batshon, H. Zhang, C. R. Davidson, J.-X. Cai, A. Pilipetskii, G. Mohs, and Neal S. Bergano, “30 Tb/s Transmission over 6,630 km Using 16QAM Signals at 6.1 bits/s/Hz Spectral Efficiency,” ECOC2012, Th.3.C.2.

H. Takara, A. Sano, T. Kobayashi, H. Kubota, H. Kawakami, A. Matsuura, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, Y. Goto, K. Tsujikawa, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, and T. Morioka, “1.01-Pb/s (12 SDM/222 WDM/456 Gb/s) Crosstalk-managed Transmission with 91.4-b/s/Hz Aggregate Spectral Efficiency,” ECOC2012, Th.3.C.1.

S. Chandrasekhar, A. Gnauck, X. Liu, P. Winzer, Y. Pan, E. C. Burrows, B. Zhu, T. Taunay, M. Fishteyn, M. Yan, J. M. Fini, E. Monberg, and F. Dimarcello, “WDM/SDM Transmission of 10 x 128-Gb/s PDM-QPSK over 2688-km 7-Core Fiber with a per-Fiber Net Aggregate Spectral-Efficiency Distance Product of 40,320 km.b/s/Hz,” ECOC2011, Th.13.C.4.

R.Ryf, R. Essiambre, A. Gnauck, S. Randel, M. A. Mestre, C. Schmidt, P. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, T. Hayashi, T. Taru, and T. Sasaki, “Space-Division Multiplexed Transmission over 4200 km 3-Core Microstructured Fiber,” OFC/NFOEC2012, PDP5C.2.

E. Ip, N. Bai, Y. Huang, E. Mateo, F. Yaman, S. Bickham, H. Tam, C. Lu, M . Li, S. Ten, A. P. T. Lau, V. Tse, G. Peng, C. Montero, X. Prieto, and G. Li, “88×3×112-Gb/s WDM Transmission over 50 km of Three-Mode Fiber with Inline Few-Mode Fiber Amplifier,” ECOC2011, Th.13.C.2.

Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, H. Matsuura, and R. Sugizaki, “Batch Multicore Amplification with Cladding-Pumped Multicore EDF,” ECOC2012, Tu.4.F.1.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Matsumoto, K. Aiso, Y. Mimura, and R. Sugizaki, “Simultaneous 7-Core Pumped Amplification in Multicore EDF Through Fibre Based Fan-In/Out,” ECOC2012, Tu.4.F.2.

H. Takahashi, T. Tsuritani, E. L. T. de Gabory, T. Ito, W. R. Peng, K. Igarashi, K. Takeshima, Y. Kawaguchi, I. Morita, Y. Tsuchida, Y.Mimura, K. Maeda, T. Saito, K. Watanabe, K.Imamura, R. Sugizaki, and M. Suzuki, “First Demonstration of MC-EDFA-Repeatered SDM Transmission of 40 x 128-Gbit/s PDM-QPSK Signals per Core over 6,160-km 7-core MCF,” ECOC2012, Th.3.C.3.

T. Mizuochi, Y. Miyata, K. Kubo, T. Sugihara, K. Onohara, and H. Yoshida, “Progress in Soft-Decision FEC,” OFC/NFOEC2011, NWC2.

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Figures (9)

Fig. 1
Fig. 1

Experimental setup.

Fig. 2
Fig. 2

7-core MCF, (a) view of cross-section, (b) FI/FO, (c) end face of fiber bundle of FI/FO.

Fig. 3
Fig. 3

7-core MC-EDFA, (a) cross-section of MC-EDF, (b) composition, (c) gain and noise figure of MC-EDFA.

Fig. 4
Fig. 4

Characteristics of XT, (a) MCF, (b)MC-EDFA.

Fig. 5
Fig. 5

(a) The schematic explanation to generate 7 parallel signals and path for each signal at loop, (b) signal transmission of each path.

Fig. 6
Fig. 6

OSNR sensitivity curve.

Fig. 7
Fig. 7

Transmission performances, (a) The dependency of fiber launch power, (b) Q-factor vs Effective transmission distance.

Fig. 8
Fig. 8

Optical spectrum of 40 x 128 Gbit/s PDM-QPSK signals after 6,160 km transmission.

Fig. 9
Fig. 9

7-core averaged each channel signal performance after 6,160 km transmission.

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