Silicon Photonic Mach–Zehnder Modulator Architectures for on Chip PAM-4 Signal Generation

Alireza Samani,Eslam El-Fiky,Mohamed Morsy-Osman,Rui Li,David Patel,Thang Hoang,Maxime Jacques,Mathieu Chagnon,Nicolás Abadía,David V. Plant

Journal of Lightwave Technology（2019）

引用 45|浏览51

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摘要

Four level pulse amplitude modulation (PAM-4) has become the modulation format of choice to replace on-off keying (OOK) for the 400 Gb/s short reach optical communications systems. In this paper, we investigate the possible modifications to conventional Mach-Zehnder modulator structures to improve the system performance. We present three different silicon photonic Mach-Zehnder modulator architectu...

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关键词

Modulation,Optical waveguides,Junctions,Silicon,Phase shifters,Photonics,Optical interferometry

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