期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 41, 期 11, 页码 3261-3277出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2023.3251660
关键词
Vertical cavity surface emitting lasers; Transceivers; Optical transmitters; Optical fiber networks; Optical fibers; Data models; Adaptation models; Machine learning; optical communications; VCSEL-based optical interconnects; end-to-end learning
Optical interconnects (OIs) based on vertical-cavity surface-emitting lasers (VCSELs) are widely used in data centers, supercomputers, and vehicles for low-cost, high-rate connectivity. Machine learning (ML) techniques, including deep neural networks, have been applied to improve the performance of VCSEL-based OIs. End-to-end (E2E) autoencoder approaches can optimize the entire parameterized transmitters and receivers for ultimate performance. This tutorial paper provides an overview of ML for VCSEL-based OIs, focusing on E2E approaches and addressing the unique challenges of VCSELs.
Optical interconnects (OIs) based on vertical-cavity surface-emitting lasers (VCSELs) are the main workhorse within data centers, supercomputers, and even vehicles, providing low-cost, high-rate connectivity. VCSELs must operate under extremely harsh and time-varying conditions, thus requiring adaptive and flexible designs of the communication chain. Such designs can be built based on mathematical models (model-based design) or learned from data (machine learning (ML) based design). Various ML techniques have recently come to the forefront, replacing individual components in the transmitters and receivers with deep neural networks. Beyond such component-wise learning, end-to-end (E2E) autoencoder approaches can reach the ultimate performance through co-optimizing entire parameterized transmitters and receivers. This tutorial paper aims to provide an overview of ML for VCSEL-based OIs, with a focus on E2E approaches, dealing specifically with the unique challenges facing VCSELs, such as the wide temperature variations and complex models.
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