Design of a 1 Tb/s superchannel coherent receiver

D.S. Millar; R. Maher; D. Lavery; T. Koike-Akino; M. Pajovic; A. Alvarado; M. Paskov; K. Kojima; K. Parsons; B.C. Thomsen; S.J. Savory; P. Bayvel

doi:10.1109/JLT.2016.2519260

Design of a 1 Tb/s superchannel coherent receiver

D.S. Millar, R. Maher, D. Lavery, T. Koike-Akino, M. Pajovic, A. Alvarado, M. Paskov, K. Kojima, K. Parsons, B.C. Thomsen, S.J. Savory, P. Bayvel

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Abstract

We describe the design of a trained and pilot-aided digital coherent receiver, capable of detecting a 1 Tb/s superchannel with a single optical front-end. Algorithms for receiver training are described, which calculate the equalizer coefficients, subchannel SNRs, and centroids of the transmitted constellations. Algorithms for pilot-aided operation are then described in detail, providing pilot-aided constant modulus equalization and joint carrier-phase estimation over several coherent subchannels. We demonstrate the detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 × 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.

Original language	English
Pages (from-to)	1453-1463
Journal	Journal of Lightwave Technology
Volume	34
Issue number	6
DOIs	https://doi.org/10.1109/JLT.2016.2519260
Publication status	Published - 15 Mar 2016

Keywords

Carrier phase estimation
coherent detection
LDPC
superchannel

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10.1109/JLT.2016.2519260

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title = "Design of a 1 Tb/s superchannel coherent receiver",

abstract = "We describe the design of a trained and pilot-aided digital coherent receiver, capable of detecting a 1 Tb/s superchannel with a single optical front-end. Algorithms for receiver training are described, which calculate the equalizer coefficients, subchannel SNRs, and centroids of the transmitted constellations. Algorithms for pilot-aided operation are then described in detail, providing pilot-aided constant modulus equalization and joint carrier-phase estimation over several coherent subchannels. We demonstrate the detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 × 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.",

keywords = "Carrier phase estimation, coherent detection, LDPC, superchannel",

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TY - JOUR

T1 - Design of a 1 Tb/s superchannel coherent receiver

AU - Millar, D.S.

AU - Maher, R.

AU - Lavery, D.

AU - Koike-Akino, T.

AU - Pajovic, M.

AU - Alvarado, A.

AU - Paskov, M.

AU - Kojima, K.

AU - Parsons, K.

AU - Thomsen, B.C.

AU - Savory, S.J.

AU - Bayvel, P.

PY - 2016/3/15

Y1 - 2016/3/15

N2 - We describe the design of a trained and pilot-aided digital coherent receiver, capable of detecting a 1 Tb/s superchannel with a single optical front-end. Algorithms for receiver training are described, which calculate the equalizer coefficients, subchannel SNRs, and centroids of the transmitted constellations. Algorithms for pilot-aided operation are then described in detail, providing pilot-aided constant modulus equalization and joint carrier-phase estimation over several coherent subchannels. We demonstrate the detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 × 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.

AB - We describe the design of a trained and pilot-aided digital coherent receiver, capable of detecting a 1 Tb/s superchannel with a single optical front-end. Algorithms for receiver training are described, which calculate the equalizer coefficients, subchannel SNRs, and centroids of the transmitted constellations. Algorithms for pilot-aided operation are then described in detail, providing pilot-aided constant modulus equalization and joint carrier-phase estimation over several coherent subchannels. We demonstrate the detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 × 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.

KW - Carrier phase estimation

KW - coherent detection

KW - LDPC

KW - superchannel

U2 - 10.1109/JLT.2016.2519260

DO - 10.1109/JLT.2016.2519260

M3 - Article

SN - 0733-8724

VL - 34

SP - 1453

EP - 1463

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 6

ER -

Design of a 1 Tb/s superchannel coherent receiver

Abstract

Keywords

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