Temperature dependence of dynamic properties and tolerance to optical feedback of high-speed 1.3-μm DFB Quantum-Dot Lasers

  • S. Azouigui
  • , D. Y. Cong
  • , A. Martinez
  • , K. Merghem
  • , Q. Zou
  • , J. G. Provost
  • , B. Dagens
  • , M. Fischer
  • , F. Gerschütz
  • , J. Koeth
  • , I. Krestnikov
  • , A. Kovsh
  • , A. Ramdane

Research output: Contribution to journalArticlepeer-review

Abstract

The temperature dependence of the dynamic performance of p-doped InAs/GaAs quantum-dot distributed feedback (DFB) lasers emitting at 1.3 μm is investigated. A maximum relaxation frequency of ∼ 7 GHz is demonstrated for a constant bias current over the whole 25 °C-85 °C temperature range. The Henry factor is temperature independent and remains constant at ∼ 2.5. The effect of external optical feedback is assessed on the same device in a 10-Gb/s transmission over 20 km.

Original languageEnglish
Article number5713230
Pages (from-to)582-584
Number of pages3
JournalIEEE Photonics Technology Letters
Volume23
Issue number9
DOIs
Publication statusPublished - 19 Apr 2011
Externally publishedYes

Keywords

  • Coherence collapse
  • optical feedback
  • quantum dot (QD)
  • semiconductor laser

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