Digital Pre-Emphasis Based System Design Trade-offs for 64 Gbaud Coherent Data Center Interconnects

被引：0

作者：

Rafique, Danish ^{[1
]}

Eiselt, Nicklas ^{[2
]}

Griesser, Helmut ^{[1
]}

Wohlfeil, Benjamin ^{[2
]}

Eiselt, Michael ^{[2
]}

Elbers, Joerg-Peter ^{[1
]}

机构：

[1] ADVA Opt Networking SE, Fraunhoferstr 9a, D-82152 Munich, Germany

[2] ADVA Opt Networking SE, Marzenquelle 1, D-98617 Meiningen, Germany

来源：

2017 19TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) | 2017年

关键词：

coherent detection; quadrature amplitude modulation; digital pre-emphasis; optical fiber communications; root-raised cosine; OPTICAL COMMUNICATION-SYSTEMS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on the role of digital pre-emphasis in facilitating 64 Gbaud DP-64QAM coherent optical systems based on currently available commercial 32 Gbaud transceiver components. In particular, we vary the extent of digital pre-emphasis together with digital-to-analog converter bandwidth and resolution, and show the optical back-to-back performance and transmitter output power trade-offs. Our results suggest that with a minimum required DAC bandwidth and effective number of bits of 25 GHz and 6 bits, respectively (at 1 dB penalty w.r.t best performance), an optimized DPE strength bandwidth of 18 GHz allows for a TX output power of -16 dBm, with an associated maximum OSNR penalty of similar to 3 dB, w.r.t. the theoretical bound for 64 Gbaud DP-64QAM.

引用

页数：4

共 5 条

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