Accurate analysis and low-complexity compensation of transceiver nonlinear distortion for higher-order modulation

Hisao Nakashima; Naoya Okada; Yoshitaka Nomura; Taizo Maeda; Zhenning Tao; Takeshi Hoshida

doi:10.1117/12.2609357

3 March 2022 Accurate analysis and low-complexity compensation of transceiver nonlinear distortion for higher-order modulation

Hisao Nakashima, Naoya Okada, Yoshitaka Nomura, Taizo Maeda, Zhenning Tao, Takeshi Hoshida

Author Affiliations +

Proceedings Volume 12027, Metro and Data Center Optical Networks and Short-Reach Links V; 1202707 (2022) https://doi.org/10.1117/12.2609357
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

As network traffic increases continuously, advances in spectral efficiency with higher-order modulation formats, such as 64 and 256 quadrature amplitude modulation (64-QAM and 256-QAM, respectively), are expected. The device nonlinearity is a major obstacle in achieving a higher-order modulation which requires a high signal-power-to-noise ratio and a low waveform distortion. In this study, we analyze the characteristics of device nonlinearity and its impact on the performance of a coherent transceiver. Furthermore, we demonstrate a low-complexity nonlinear compensation that operates on a symbol rate basis and that can handle higher-order modulations such as 64-QAM or beyond.

Conference Presentation

Citation Download Citation

Hisao Nakashima, Naoya Okada, Yoshitaka Nomura, Taizo Maeda, Zhenning Tao, and Takeshi Hoshida "Accurate analysis and low-complexity compensation of transceiver nonlinear distortion for higher-order modulation", Proc. SPIE 12027, Metro and Data Center Optical Networks and Short-Reach Links V, 1202707 (3 March 2022); https://doi.org/10.1117/12.2609357

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