Impact of raman amplification on a 2-Tb/s coherent WDM system

Paola Frascella; Cleitus Antony; Simon J. Fabbri; Fatima C.Garcia Gunning; Paul Gunning; William McAuliffe; Derek Cassidy; Andrew D. Ellis

doi:10.1109/LPT.2011.2147299

Impact of raman amplification on a 2-Tb/s coherent WDM system

Paola Frascella
, Cleitus Antony
, Simon J. Fabbri
, Fatima C.Garcia Gunning
, Paul Gunning
, William McAuliffe
, Derek Cassidy
, Andrew D. Ellis

Research output: Contribution to journal › Article › peer-review

Abstract

The impact of hybrid erbium-doped fiber amplifier (EDFA)/Raman amplification on a spectrally efficient coherent-wavelength-division-multiplexed (CoWDM) optical communication system is experimentally studied and modeled. Simulations suggested that 23-dB Raman gain over an unrepeatered span of 124 km single-mode fiber would allow a decrease of the mean input power of ∼6 dB for a fixed bit-error rate (BER). Experimentally we demonstrated 1.2-dB Q-factor improvement for a 2-Tb/s seven-band CoWDM with backward Raman amplification. The system delivered an optical signal-to-noise ratio of 35 dB at the output of the receiver preamplifier providing a worst-case BER of 2 × 10 ^-6 over 49 subcarriers at 42.8 Gbaud, leaving a system margin (in terms of Q-factor) of ∼ 4 dB from the forward-error correction threshold.

Original language	English
Article number	5756219
Pages (from-to)	959-961
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	23
Issue number	14
DOIs	https://doi.org/10.1109/LPT.2011.2147299
Publication status	Published - 2011

Keywords

Coherent wavelength-division multiplexing (CoWDM)
Raman amplification

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10.1109/LPT.2011.2147299

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title = "Impact of raman amplification on a 2-Tb/s coherent WDM system",

abstract = "The impact of hybrid erbium-doped fiber amplifier (EDFA)/Raman amplification on a spectrally efficient coherent-wavelength-division-multiplexed (CoWDM) optical communication system is experimentally studied and modeled. Simulations suggested that 23-dB Raman gain over an unrepeatered span of 124 km single-mode fiber would allow a decrease of the mean input power of ∼6 dB for a fixed bit-error rate (BER). Experimentally we demonstrated 1.2-dB Q-factor improvement for a 2-Tb/s seven-band CoWDM with backward Raman amplification. The system delivered an optical signal-to-noise ratio of 35 dB at the output of the receiver preamplifier providing a worst-case BER of 2 × 10 -6 over 49 subcarriers at 42.8 Gbaud, leaving a system margin (in terms of Q-factor) of ∼ 4 dB from the forward-error correction threshold.",

keywords = "Coherent wavelength-division multiplexing (CoWDM), Raman amplification",

author = "Paola Frascella and Cleitus Antony and Fabbri, \{Simon J.\} and Gunning, \{Fatima C.Garcia\} and Paul Gunning and William McAuliffe and Derek Cassidy and Ellis, \{Andrew D.\}",

year = "2011",

doi = "10.1109/LPT.2011.2147299",

language = "English",

volume = "23",

pages = "959--961",

journal = "IEEE Photonics Technology Letters",

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T1 - Impact of raman amplification on a 2-Tb/s coherent WDM system

AU - Frascella, Paola

AU - Antony, Cleitus

AU - Fabbri, Simon J.

AU - Gunning, Fatima C.Garcia

AU - Gunning, Paul

AU - McAuliffe, William

AU - Cassidy, Derek

AU - Ellis, Andrew D.

PY - 2011

Y1 - 2011

N2 - The impact of hybrid erbium-doped fiber amplifier (EDFA)/Raman amplification on a spectrally efficient coherent-wavelength-division-multiplexed (CoWDM) optical communication system is experimentally studied and modeled. Simulations suggested that 23-dB Raman gain over an unrepeatered span of 124 km single-mode fiber would allow a decrease of the mean input power of ∼6 dB for a fixed bit-error rate (BER). Experimentally we demonstrated 1.2-dB Q-factor improvement for a 2-Tb/s seven-band CoWDM with backward Raman amplification. The system delivered an optical signal-to-noise ratio of 35 dB at the output of the receiver preamplifier providing a worst-case BER of 2 × 10 -6 over 49 subcarriers at 42.8 Gbaud, leaving a system margin (in terms of Q-factor) of ∼ 4 dB from the forward-error correction threshold.

AB - The impact of hybrid erbium-doped fiber amplifier (EDFA)/Raman amplification on a spectrally efficient coherent-wavelength-division-multiplexed (CoWDM) optical communication system is experimentally studied and modeled. Simulations suggested that 23-dB Raman gain over an unrepeatered span of 124 km single-mode fiber would allow a decrease of the mean input power of ∼6 dB for a fixed bit-error rate (BER). Experimentally we demonstrated 1.2-dB Q-factor improvement for a 2-Tb/s seven-band CoWDM with backward Raman amplification. The system delivered an optical signal-to-noise ratio of 35 dB at the output of the receiver preamplifier providing a worst-case BER of 2 × 10 -6 over 49 subcarriers at 42.8 Gbaud, leaving a system margin (in terms of Q-factor) of ∼ 4 dB from the forward-error correction threshold.

KW - Coherent wavelength-division multiplexing (CoWDM)

KW - Raman amplification

UR - https://www.scopus.com/pages/publications/79959743242

U2 - 10.1109/LPT.2011.2147299

DO - 10.1109/LPT.2011.2147299

M3 - Article

AN - SCOPUS:79959743242

SN - 1041-1135

VL - 23

SP - 959

EP - 961

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 14

M1 - 5756219

ER -

Impact of raman amplification on a 2-Tb/s coherent WDM system

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Keywords

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