Temperature insensitive linewidth enhancement factor of p -type doped InAsGaAs quantum-dot lasers emitting at 1.3 μm

D. Y. Cong, A. Martinez, K. Merghem, A. Ramdane, J. G. Provost, M. Fischer, I. Krestnikov, A. Kovsh

Research output: Contribution to journalArticlepeer-review

Abstract

The temperature dependence of microwave properties-relaxation frequency and Henry factor-of undoped and p -type doped ten InAsGaAs quantum-dot layer lasers is reported in the 20-80 °C range. It is shown that the linewidth enhancement factor of the p -type doped devices is temperature insensitive while that of the undoped lasers shows a strong dependence for temperatures above 40 °C.

Original languageEnglish
Article number191109
JournalApplied Physics Letters
Volume92
Issue number19
DOIs
Publication statusPublished - 27 May 2008

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