Speed enhancement in VCSELs employing grating mirrors

Il-Sug Chung (Invited author), Jesper Mørk (Invited author)

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In recent years, various approaches to improve the speed of directly modulated vertical-cavity surface-emitting lasers (VCSELs) have been reported and demonstrated good improvement. In this paper, we propose and numerically investigate a new possibility of using high-index-contrast grating (HCG) as mirror for VCSELs. By changing the grating design, one can control the reflection delay of the grating mirror, enabling the control of cavity photon lifetime. On the other hand, short energy penetration depth of the HCG results in smaller modal volume, compared to DBR VCSELs. An example structure shows that the HCG VCSEL has a 30-% higher 3-dB bandwidth than the DBR VCSEL.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Pages (from-to)863308
Number of pages7
Publication statusPublished - 2013
EventSPIE Photonics West : High Contrast Metastructures II - The Moscone Center, San Francisco, California, United States
Duration: 5 Feb 20137 Feb 2013


ConferenceSPIE Photonics West : High Contrast Metastructures II
LocationThe Moscone Center
Country/TerritoryUnited States
CitySan Francisco, California

Bibliographical note

Copyright 2013 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


  • High speed
  • Vertical-cavity surface-emitting laser
  • HCG
  • Subwavelength


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