1.55-μm VCSEL with enhanced modulation bandwidth and temperature range

W. Hofmann, Michael Müller, G. Böhm, M. C. Amann, M. Ortsiefer

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

InP-based vertical-cavity surface-emitting lasers (VCSELs) at 1.55- m emission wavelength with improved modulation bandwidth and temperature behavior are demonstrated. Utilizing an improved active region, thermal design, and reduced chip parasitics, a superior modulation-bandwidth >10 GHz is achieved up to 85 °C. The new VCSEL device is compared in detail with our reference design, analyzing all bandwidth-limiting elements. With their improved temperature range at invariant output power and minimal threshold change with temperature these VCSELs are especially qualified for uncooled operation in passive optical networks. Potential bit rates of 12.5 or even 17 Gb/s are expected with this kind of devices for cost-effective 100-G Ethernet solutions at metro-range.

Original languageEnglish
Pages (from-to)923-925
Number of pages3
JournalIEEE Photonics Technology Letters
Volume21
Issue number13
DOIs
StatePublished - 1 Jul 2009

Keywords

  • InP
  • Optical communications
  • Semiconductor lasers
  • Vertical-cavity surface-emitting laser (VCSEL)

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