Silicon Photonic Ring-Assisted MZI for 50 Gb/s DAC-Less and DSP-Free PAM-4 Transmission

被引：21
|
作者：
Li, Rui [1 ]
Patel, David [1 ]
Samani, Alireza [1 ]
El-Fiky, Eslam [1 ]
Xing, Zhenping [1 ]
Morsy-Osman, Mohamed [1 ]
Plant, David V. [1 ]
机构：
[1] McGill Univ, Dept Elect & Comp Engn, Photon Syst Grp, Montreal, PQ H3A 0E9, Canada
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2017年 / 29卷 / 12期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Electrooptic modulators; silicon photonics; optical interconnections; intensity modulation; MODULATOR; BANDWIDTH; AMPLITUDE; DESIGN;
D O I：
10.1109/LPT.2017.2702611
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 present the design and characterization of a silicon photonic ring-assisted Mach-Zehnder interferometer for four-level pulse amplitude modulation (PAM-4) short-reach transmission without the use of digital-to-analog converter (DAC) or digital signal processing (DSP). The PAM-4 optical signals are generated by driving two microring modulators with independent 2-level radio frequency signals. The device is operated at 25 Gbaud and the PAM-4 optical signals are transmitted over 2 km of standard single mode fiber. The bit error rate is estimated to be lower than the hard-decision forward error correction threshold of 3.8 x 10(-3), showing a successful DAC-less and DSP-free PAM-4 transmission at 50 Gb/s.
引用
收藏
页码：1046 / 1049
页数：4
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