Abstract

Unrepeatered transmission of 8 x 120 Gb/s over 444.2 km (76.6 dB) and multi-rate transmission of 8 x 120 Gb/s and 9 x 10.7 Gb/s over a 75.4 dB span have been demonstrated with off-line digital processing for the coherent 120 Gb/s channels. Transmission of 2 x 120 Gb/s with 7 x 12.5Gb/s over 78 dB is also demonstrated with a real-time ASIC processor. All transmission results have been achieved using standard effective-area pure-silica-core fiber using forward and backward distributed Raman amplification and remotely-pumped erbium fiber. ASIC real-time processed results match well with off-line processing.

© 2011 OSA

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References

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  1. J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s Transmission over an Unrepeatered 365 km Effective Area-Managed Span Comprised of Ultra-Low Loss Optical Fibre,” Proc. ECOC 2010, Paper We.7.C.5.
  2. D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 x 100 Gb/s) Unrepeatered Transmission Over 401km Using PDM-QPSK with a Coherent Receiver,” Proc. ECOC 2009, Paper 6.4.3.
  3. A. Puc, D. Chang, W. Pelouch, P. Perrier, D. Krishnappa, and S. Burtsev, “Novel Design of Very Long, High Capacity Unrepeatered Raman Links,” Proc. ECOC 2009, Paper 6.4.2.

Other

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s Transmission over an Unrepeatered 365 km Effective Area-Managed Span Comprised of Ultra-Low Loss Optical Fibre,” Proc. ECOC 2010, Paper We.7.C.5.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 x 100 Gb/s) Unrepeatered Transmission Over 401km Using PDM-QPSK with a Coherent Receiver,” Proc. ECOC 2009, Paper 6.4.3.

A. Puc, D. Chang, W. Pelouch, P. Perrier, D. Krishnappa, and S. Burtsev, “Novel Design of Very Long, High Capacity Unrepeatered Raman Links,” Proc. ECOC 2009, Paper 6.4.2.

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Figures (8)

Fig. 1
Fig. 1

System configuration with off-line processing 100G setup. Equipment in dashed boxes is used for mixed 10 Gb/s and 100 Gb/s transmission.

Fig. 2
Fig. 2

System configuration with real-time ASIC processing 100G module. Equipment in dashed boxes is used for mixed 10 Gb/s and 100 Gb/s transmission. Insert pictures show ASIC 100G module under test.

Fig. 3
Fig. 3

Power distribution of signals and pumps.

Fig. 4
Fig. 4

Measured OSNR (0.1 nm RBW) and Q.

Fig. 5
Fig. 5

(a) Spectra of mixed 10.7 and 120 Gb/s signals, (b) Q of 120 Gb/s versus relative signal power of adjacent 10.7 Gb/s channels.

Fig. 6
Fig. 6

(a) WDM spectrum of the multi-rate transmission and (b) measured Q (8 x 120 Gb/s and 9 x 10.7 Gb/s).

Fig. 7
Fig. 7

(a) WDM spectrum of the multi-rate transmission and (b) measured OSNR and Q (8 x 120 Gb/s and 9 x 10.7 Gb/s).

Fig. 8
Fig. 8

Max Span loss vs. 100G Channel Count.

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