The influence of quantum-dash height on the differential gain and linewidth enhancement factor of InAs/InP quantum-dash lasers

Zahed M. Khan, Tien K. Ng, Udo Schwingenschlögl, Boon S. Ooi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a rate equation model for the analysis of static and dynamic characteristics of InAs/InP quantumdash (Qdash) semiconductor laser. The model is applied to calculate the differential modal gain (DMG) and linewidth enhancement factor (LEF) of the Qdash laser. In addition, the effect of varying the Qdash height on these dynamic parameters is evaluated. The model predicts a decrease in the differential modal gain with increase in the Qdash height while the LEF value generally does not get affected. The LEF and DMG of the Qdash laser at peak gain attain a value of ∼1-1.5 and ∼0.6×10 -15 -1.0×10-15 cm2, respectively.

Original languageEnglish
Title of host publication7th International Symposium on High-Capacity Optical Networks and Enabling Technologies, HONET 2010
Pages112-114
Number of pages3
DOIs
StatePublished - 2010
Externally publishedYes

Publication series

Name7th International Symposium on High-Capacity Optical Networks and Enabling Technologies, HONET 2010

Keywords

  • Differential gain
  • LEF
  • Quantum-dash laser
  • Rate equations

ASJC Scopus subject areas

  • Computer Networks and Communications

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