Dynamics of GaAs/AlGaAs microdisk lasers

K. J. Luo; J. Y. Xu; H. Cao; Y. Ma; S. H. Chang; S. T. Ho; G. S. Solomon

doi:10.1063/1.1317544

Dynamics of GaAs/AlGaAs microdisk lasers

K. J. Luo^*, J. Y. Xu, H. Cao, Y. Ma, S. H. Chang, S. T. Ho, G. S. Solomon

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Dynamic response of a GaAs/AlGaAs microdisk laser has been experimentally investigated using femtosecond optical pumping. Below the lasing threshold, the delay time of the emission pulse from the microdisk hardly changes with the pump power. Above the lasing threshold, the delay time is shortened dramatically, and it decreases with increasing the pump power. The theoretical simulation based on the rate equations reproduces the experimental observation after the effect of carrier diffusion is taken into account. The simulation result illustrates that the speed of a microdisk laser is limited mainly by the carrier diffusion in the disk plane.

Original language	English (US)
Pages (from-to)	2304-2306
Number of pages	3
Journal	Applied Physics Letters
Volume	77
Issue number	15
DOIs	https://doi.org/10.1063/1.1317544
State	Published - Oct 9 2000

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Dynamics of GaAs/AlGaAs microdisk lasers",

abstract = "Dynamic response of a GaAs/AlGaAs microdisk laser has been experimentally investigated using femtosecond optical pumping. Below the lasing threshold, the delay time of the emission pulse from the microdisk hardly changes with the pump power. Above the lasing threshold, the delay time is shortened dramatically, and it decreases with increasing the pump power. The theoretical simulation based on the rate equations reproduces the experimental observation after the effect of carrier diffusion is taken into account. The simulation result illustrates that the speed of a microdisk laser is limited mainly by the carrier diffusion in the disk plane.",

author = "Luo, {K. J.} and Xu, {J. Y.} and H. Cao and Y. Ma and Chang, {S. H.} and Ho, {S. T.} and Solomon, {G. S.}",

year = "2000",

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T1 - Dynamics of GaAs/AlGaAs microdisk lasers

AU - Luo, K. J.

AU - Xu, J. Y.

AU - Cao, H.

AU - Ma, Y.

AU - Chang, S. H.

AU - Ho, S. T.

AU - Solomon, G. S.

PY - 2000/10/9

Y1 - 2000/10/9

N2 - Dynamic response of a GaAs/AlGaAs microdisk laser has been experimentally investigated using femtosecond optical pumping. Below the lasing threshold, the delay time of the emission pulse from the microdisk hardly changes with the pump power. Above the lasing threshold, the delay time is shortened dramatically, and it decreases with increasing the pump power. The theoretical simulation based on the rate equations reproduces the experimental observation after the effect of carrier diffusion is taken into account. The simulation result illustrates that the speed of a microdisk laser is limited mainly by the carrier diffusion in the disk plane.

AB - Dynamic response of a GaAs/AlGaAs microdisk laser has been experimentally investigated using femtosecond optical pumping. Below the lasing threshold, the delay time of the emission pulse from the microdisk hardly changes with the pump power. Above the lasing threshold, the delay time is shortened dramatically, and it decreases with increasing the pump power. The theoretical simulation based on the rate equations reproduces the experimental observation after the effect of carrier diffusion is taken into account. The simulation result illustrates that the speed of a microdisk laser is limited mainly by the carrier diffusion in the disk plane.

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Dynamics of GaAs/AlGaAs microdisk lasers

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