400Gbit/s/ch Field Demonstration of Modulation Format Adaptation Based on Pilot-Aided OSNR Estimation Using Real-Time DSP

Seiji OKAMOTO; Kazushige YONENAGA; Kengo HORIKOSHI; Mitsuteru YOSHIDA; Yutaka MIYAMOTO; Masahito TOMIZAWA; Takeshi OKAMOTO; Hidemi NOGUCHI; Jun-ichi ABE; Junichiro MATSUI; Hisao NAKASHIMA; Yuichi AKIYAMA; Takeshi HOSHIDA; Hiroshi ONAKA; Kenya SUGIHARA; Soichiro KAMETANI; Kazuo KUBO; Takashi SUGIHARA

doi:10.1587/transcom.2017OBI0003

Joint Special Section on Opto-electronics and Communications for Future Optical Network

400Gbit/s/ch Field Demonstration of Modulation Format Adaptation Based on Pilot-Aided OSNR Estimation Using Real-Time DSP

Seiji OKAMOTO, Kazushige YONENAGA, Kengo HORIKOSHI, Mitsuteru YOSHIDA, Yutaka MIYAMOTO, Masahito TOMIZAWA, Takeshi OKAMOTO, Hidemi NOGUCHI, Jun-ichi ABE, Junichiro MATSUI, Hisao NAKASHIMA, Yuichi AKIYAMA, Takeshi HOSHIDA, Hiroshi ONAKA, Kenya SUGIHARA, Soichiro KAMETANI, Kazuo KUBO, Takashi SUGIHARA

Author information

Seiji OKAMOTO
NTT Network Innovation Laboratories, NTT Corporation
Kazushige YONENAGA
NTT Network Innovation Laboratories, NTT Corporation
Kengo HORIKOSHI
NTT Access Network Service Systems Laboratories
Mitsuteru YOSHIDA
NTT Network Innovation Laboratories, NTT Corporation
Yutaka MIYAMOTO
NTT Network Innovation Laboratories, NTT Corporation
Masahito TOMIZAWA
NTT Network Innovation Laboratories, NTT Corporation
Takeshi OKAMOTO
NEC Corporation
Hidemi NOGUCHI
NEC Corporation
Jun-ichi ABE
NEC Corporation
Junichiro MATSUI
NEC Corporation
Hisao NAKASHIMA
Fujitsu Limited
Yuichi AKIYAMA
Fujitsu Limited
Takeshi HOSHIDA
Fujitsu Limited
Hiroshi ONAKA
Fujitsu Limited
Kenya SUGIHARA
Mitsubishi Electric Corporation
Soichiro KAMETANI
Mitsubishi Electric Corporation
Kazuo KUBO
Mitsubishi Electric Corporation
Takashi SUGIHARA
Mitsubishi Electric Corporation

Keywords: adaptive modulation, field trial, real-time DSP, 400Gbit/s

JOURNAL FREE ACCESS

2017 Volume E100.B Issue 10 Pages 1726-1733

DOI https://doi.org/10.1587/transcom.2017OBI0003

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Abstract

We describe a field experiment of flexible modulation format adaptation on a real-time 400Gbit/s/ch DSP-LSI. This real-time DSP-LSI features OSNR estimation, practical simplified back propagation, and high gain soft-decision forward error correction. With these techniques, we have successfully demonstrated modulation format allocation and transmission of 56-channel 400Gbit/s-2SC-PDM-16QAM and 200Gbit/s-2SC-PDM-QPSK signals in 216km and 3246km standard single mode fiber, respectively.

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