用于100 GBd PAM4信号传输且具有低于1 dB移相器损耗的硅有机混合（SOH）马赫-曾德尔调制器。

Silicon-organic hybrid (SOH) Mach-Zehnder modulators for 100 GBd PAM4 signaling with sub-1 dB phase-shifter loss.

作者信息

Kieninger Clemens, Füllner Christoph, Zwickel Heiner, Kutuvantavida Yasar, Kemal Juned N, Eschenbaum Carsten, Elder Delwin L, Dalton Larry R, Freude Wolfgang, Randel Sebastian, Koos Christian

出版信息

Opt Express. 2020 Aug 17;28(17):24693-24707. doi: 10.1364/OE.390315.

DOI:10.1364/OE.390315

PMID:32907004

Abstract

We report on compact and efficient silicon-organic hybrid (SOH) Mach-Zehnder modulators (MZM) with low phase-shifter insertion loss of 0.7 dB. The 280 µm-long phase shifters feature a -voltage-length product of 0.41 Vmm and a loss-efficiency product as small as aUL = 1.0 VdB. The device performance is demonstrated in a data transmission experiment, where we generate on-off-keying (OOK) and four-level pulse-amplitude modulation (PAM4) signals at symbol rates of 100 GBd, resulting in line rates of up to 200 Gbit/s. Bit error ratios are below the threshold for hard-decision forward error correction (HD-FEC) with 7% coding overhead, leading to net data rates of 187 Gbit/s. This is the highest PAM4 data rate ever achieved for a sub-1 mm silicon photonic MZM.

摘要

我们报道了紧凑高效的硅有机混合（SOH）马赫曾德尔调制器（MZM），其低相移器插入损耗为0.7 dB。280 µm长的相移器具有0.41 V/mm的电压长度乘积和低至aUL = 1.0 V/dB的损耗效率乘积。在数据传输实验中展示了该器件的性能，我们以100 GBd的符号率生成开关键控（OOK）和四电平脉冲幅度调制（PAM4）信号，从而实现高达200 Gbit/s的线路速率。误码率低于具有7%编码开销的硬判决前向纠错（HD-FEC）阈值，净数据速率达到187 Gbit/s。这是亚1 mm硅光子MZM所实现的最高PAM4数据速率。