Latest advances in VCSEL technology for next-generation data center network [Invited]

Shanting Hu*, Xingchen Zhang, Chengyuan Li, Hongxing Yin, Xinying Li, Xiangjun Xin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Directly modulated vertical-cavity surface-emitting lasers (VCSELs) have long dominated the data center optical interconnect market, attributed to VCSELs’ cost-effectiveness and energy efficiency. However, numerous challenges are currently being addressed to enhance device characteristics and modulation speed, aligning with the evolving trends in next-generation data centers that underscore the need for enhanced communication rates and extended transmission distances. This review delves into VCSEL structure design, methods for achieving single-mode control, techniques for fabricating long-wavelength VCSELs, and advanced packaging technology for VCSEL arrays, offering insights into recent research on high-speed single-mode VCSEL development and related technologies.

Original languageEnglish
Article number111401
JournalChinese Optics Letters
Volume22
Issue number11
DOIs
Publication statusPublished - 10 Nov 2024

Keywords

  • directly modulated VCSELs
  • optical packaging
  • transverse mode control

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Hu, S., Zhang, X., Li, C., Yin, H., Li, X., & Xin, X. (2024). Latest advances in VCSEL technology for next-generation data center network [Invited]. Chinese Optics Letters, 22(11), Article 111401. https://doi.org/10.3788/COL202422.111401