Silicon PAM-4 optical modulator driven by two binary electrical signals with different peak-to-peak voltages

Silicon PAM-4 optical modulator driven by two binary electrical signals with different peak-to-peak voltages
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由具有不同峰峰值电压的两个二进制电信号驱动的硅 PAM-4 光调制器

DOI:
10.1364/ol.42.002213
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发表时间:
2017-06
期刊:
影响因子:
3.6
通讯作者:
Lin Yang
Lin Yang
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Lingchen Zheng;Jianfeng Ding;Sizhu Shao;Lei Zhang;Lin Yang

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我们展示了一种基于对称马赫-曾德尔干涉仪的硅PAM-4光调制器。两个峰峰值电压不同的互不相关的二进制电信号被加到硅光调制器的移相器上。因此,在两个臂中产生两个不同的相移。排列后,两臂之间共有四个相位差,输出光功率为四个能级。该器件在1525~1565 nm的波长范围内可工作在32Gbaud,是下一代高速硅光链路的理想选择。
We demonstrate a silicon PAM-4 optical modulator, which is based on a symmetric Mach-Zehnder interferometer. Two uncorrelated binary electrical signals with different peak-to-peak voltages are applied to the phase shifters of the silicon optical modulator. Accordingly, two different phase shifts are generated in the two arms. After the permutation, there are totally four phase differences between the two arms and the output optical power has four levels. The device can work at 32 Gbaud in the wavelength range from 1525 nm to 1565 nm, which is promising for the next-generation high-speed silicon optical link.
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