NDLI: Influence of carrier capture-escape processes on dynamical behaviour and characteristics of quantum dot laser

Content Provider	IEEE Xplore Digital Library
Author	Lysak, V.V. Shulika, A.V. Sukhoivanov, I.A.
Copyright Year	2001
Description	Author affiliation: Dept. of the Phys. Found. of Electr. Eng., Tech. Univ. of Radio Electron., Kharkov, Ukraine (Lysak, V.V.)
Abstract	The space carrier confinements in all three directions at very small size (linear size is below or equal to the exciton Bohr radius) reduce to the discrete power spectrum of carriers inside the quantum dot (QD). This results in a significant improvement in the QD laser structure properties. Also if the distance between the energy states considerably exceeds the value of the thermal energy, "fizzing" carriers in the power window about kT can be avoided. Theoretical and experimental research into QD lasers has been conducted over many papers and most attention has been given to the amplification phenomenon in QDs and a definition of the threshold currents. The processes of carrier capture and escape play an essential role in the dynamics of quantum well lasers. In QD lasers these processes have a large influence too. In particular, the escape processes can cause the spatial hole burning effect. In this work we present a three-level transmission-line model of the QD laser. Using this model we study numerically the influence of carrier capture-escape processes on optical response, modulations and current watt (CW) characteristics from QD lasers.
Sponsorship	LUCENT Technol
Starting Page	28
Ending Page	31
File Size	278905
Page Count	4
File Format	PDF
ISBN	0780370961
DOI	10.1109/ICTON.2001.934711
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-21
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantum well lasers Laser modes Quantum dot lasers Laser theory Optical modulation Carrier confinement Excitons Energy states Threshold current Transmission lines
Content Type	Text
Resource Type	Article

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