Single-Mode VCSEL Transmission for Short Reach Communications

Ming Jun Li*, Kangmei Li, Xin Chen, Snigdharaj K. Mishra, Adrian A. Juarez, Jason E. Hurley, Jeffery S. Stone, Chia Hsuan Wang, Hao Tien Cheng, Chao Hsin Wu, Hao-Chung Kuo, Cheng Ting Tsai, Gong Ru Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Single-mode VCSEL technology has advanced significantly in the past few years. The advantages of single-mode VCSELs lie primarily on the narrower linewidth, lower numerical aperture, and smaller spot size compared to multimode VCSELs. They are suitable for transmitting over both multimode fibers and few-mode fibers. For multimode fiber systems, the narrow linewidth can reduce the chromatic dispersion penalty and increase the system reach. A single-mode VCSEL also allows the coupling into graded-index single-mode fiber, which is few-mode around 850 nm with high bandwidth, for few-mode transmission. We review recent progress and present new experimental results and modeling analyses of single-mode VCSEL transmission over both types of fibers. The experiments and analyses shed new light on how single-mode VCSELs can be used with multimode fibers and graded-index single-mode fibers and relative merits between 850 nm single-mode VCSELs versus 980 nm and 1060 nm single-mode VCSELs to address the needs of various applications.

Original languageEnglish
Article number9222058
Pages (from-to)868-880
Number of pages13
JournalJournal of Lightwave Technology
Issue number4
StatePublished - 15 Feb 2021


  • Few-mode fiber
  • fiber bandwidth
  • fiber dispersion
  • fiber testing
  • graded-index single-mode fiber
  • multimode fiber
  • optical fiber communication
  • single-mode VCSEL
  • transmission system testing

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