The role of Auger recombination in the temperature-dependent output characteristics (T0=∞) of p-doped 1.3 μm quantum dot lasers

Fathpour, S.; Mi, Z.; Bhattacharya, P.; Kovsh, A. R.; Mikhrin, S. S.; Krestnikov, I. L.; Kozhukhov, A. V.; Ledentsov, N. N.
November 2004
Applied Physics Letters;11/29/2004, Vol. 85 Issue 22, p5164
Academic Journal
Temperature invariant output slope efficiency and threshold current (T0=∞) in the temperature range of 5–75 °C have been measured for 1.3 μm p-doped self-organized quantum dot lasers. Similar undoped quantum dot lasers exhibit T0=69 K in the same temperature range. A self-consistent model has been employed to calculate the various radiative and nonradiative current components in p-doped and undoped lasers and to analyze the measured data. It is observed that Auger recombination in the dots plays an important role in determining the threshold current of the p-doped lasers.


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