Performance optimization of PM-16QAM transmission system enabled by real-time self-adaptive coding

Performance optimization of PM-16QAM transmission system enabled by real-time self-adaptive coding

We experimentally demonstrate self-adaptive coded 5×100  Gb/s WDM polarization multiplexed 16 quadrature amplitude modulation transmission over a 100 km fiber link, which is enabled by a real-time control plane. The real-time optical signal-to-noise ratio (OSNR) is measured using an optical performa...

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Veröffentlicht in:Optics letters 2017-10, Vol.42 (20), p.4211-4214
Hauptverfasser: Qu, Zhen, Li, Yao, Mo, Weiyang, Yang, Mingwei, Zhu, Shengxiang, Kilper, Daniel C, Djordjevic, Ivan B
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container_end_page 4214
container_issue 20
container_start_page 4211
container_title Optics letters
container_volume 42
creator Qu, Zhen
Li, Yao
Mo, Weiyang
Yang, Mingwei
Zhu, Shengxiang
Kilper, Daniel C
Djordjevic, Ivan B
description We experimentally demonstrate self-adaptive coded 5×100  Gb/s WDM polarization multiplexed 16 quadrature amplitude modulation transmission over a 100 km fiber link, which is enabled by a real-time control plane. The real-time optical signal-to-noise ratio (OSNR) is measured using an optical performance monitoring device. The OSNR measurement is processed and fed back using control plane logic and messaging to the transmitter side for code adaptation, where the binary data are adaptively encoded with three types of low-density parity-check (LDPC) codes with code rates of 0.8, 0.75, and 0.7 of large girth. The total code-adaptation latency is measured to be 2273 ms. Compared with transmission without adaptation, average net capacity improvements of 102%, 36%, and 7.5% are obtained, respectively, by adaptive LDPC coding.
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title Performance optimization of PM-16QAM transmission system enabled by real-time self-adaptive coding
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