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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 17,
  • Issue 5,
  • pp. 918-
  • (1999)

Lasing Wavelength Changes Due to Degradation in Buried Heterostructure Distributed Bragg Reflector Lasers

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Abstract

Changes in the wavelength and lamp characteristics due to the degradation of distributed Bragg reflector (DBR) lasers are investigated and the lasers are confirmed to be reliable enough for application as the light sources in WDM systems. The change in wavelength characteristics is due to degradation of the DBR or phase control region and the change in lamp characteristics is due to the degradation of active region. These changes in the characteristics are caused by diminished recombination carrier lifetime. The wavelength stability is strongly correlated with the injected current density. The lamp characteristics is confirmed to be almost as stable as in conventional Fabry-Perot lasers. The applicability of DBR lasers as the light source for wavelength division multiplexing (WDM) systems is demonstrated for actual-use conditions.

[IEEE ]

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