Anomalous dynamic characteristics of semiconductor quantum-dot lasers generating on two quantum states

G. S. Sokolovskii; Maria Ana Cataluna; A. G. Deryagin; V. I. Kuchinskii; I. I. Novikov; M. V. Maksimov; A. E. Zhukov; V. M. Ustinov; Wilson Sibbett; Edik U. Rafailov

doi:10.1134/S1063785007010026

Anomalous dynamic characteristics of semiconductor quantum-dot lasers generating on two quantum states

G. S. Sokolovskii^*, Maria Ana Cataluna, A. G. Deryagin, V. I. Kuchinskii, I. I. Novikov, M. V. Maksimov, A. E. Zhukov, V. M. Ustinov, Wilson Sibbett, Edik U. Rafailov

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

Dynamics of the emission spectra of semiconductor quantum dot (QD) lasers generating on two quantum states has been experimentally studied. Being pumped with 30-ns current pulses, a QD laser ceased to generate 2-5 ns after switch-on and exhibited a pause up to 10 ns or longer, depending on the pumping pulse amplitude. After the subsequent switch-on, the laser generated short (200-300 ps) pulses of emission from the excited state of QDs followed by minima of comparable duration (dark pulses) corresponding to the ground-state emission. This behavior is explained in terms of the laser Q-switching due to the charge carrier density redistribution between the excited and ground states.

Original language	English
Pages (from-to)	4-7
Number of pages	4
Journal	Technical Physics Letters
Volume	33
Issue number	1
DOIs	https://doi.org/10.1134/S1063785007010026
Publication status	Published - Jan 2007

Keywords

73.21.La
78.67.Hc
85.35.Be

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1134/S1063785007010026

Cite this

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title = "Anomalous dynamic characteristics of semiconductor quantum-dot lasers generating on two quantum states",

abstract = "Dynamics of the emission spectra of semiconductor quantum dot (QD) lasers generating on two quantum states has been experimentally studied. Being pumped with 30-ns current pulses, a QD laser ceased to generate 2-5 ns after switch-on and exhibited a pause up to 10 ns or longer, depending on the pumping pulse amplitude. After the subsequent switch-on, the laser generated short (200-300 ps) pulses of emission from the excited state of QDs followed by minima of comparable duration (dark pulses) corresponding to the ground-state emission. This behavior is explained in terms of the laser Q-switching due to the charge carrier density redistribution between the excited and ground states.",

keywords = "73.21.La, 78.67.Hc, 85.35.Be",

author = "Sokolovskii, {G. S.} and Cataluna, {Maria Ana} and Deryagin, {A. G.} and Kuchinskii, {V. I.} and Novikov, {I. I.} and Maksimov, {M. V.} and Zhukov, {A. E.} and Ustinov, {V. M.} and Wilson Sibbett and Rafailov, {Edik U.}",

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AU - Cataluna, Maria Ana

AU - Deryagin, A. G.

AU - Kuchinskii, V. I.

AU - Novikov, I. I.

AU - Maksimov, M. V.

AU - Zhukov, A. E.

AU - Ustinov, V. M.

AU - Sibbett, Wilson

AU - Rafailov, Edik U.

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N2 - Dynamics of the emission spectra of semiconductor quantum dot (QD) lasers generating on two quantum states has been experimentally studied. Being pumped with 30-ns current pulses, a QD laser ceased to generate 2-5 ns after switch-on and exhibited a pause up to 10 ns or longer, depending on the pumping pulse amplitude. After the subsequent switch-on, the laser generated short (200-300 ps) pulses of emission from the excited state of QDs followed by minima of comparable duration (dark pulses) corresponding to the ground-state emission. This behavior is explained in terms of the laser Q-switching due to the charge carrier density redistribution between the excited and ground states.

AB - Dynamics of the emission spectra of semiconductor quantum dot (QD) lasers generating on two quantum states has been experimentally studied. Being pumped with 30-ns current pulses, a QD laser ceased to generate 2-5 ns after switch-on and exhibited a pause up to 10 ns or longer, depending on the pumping pulse amplitude. After the subsequent switch-on, the laser generated short (200-300 ps) pulses of emission from the excited state of QDs followed by minima of comparable duration (dark pulses) corresponding to the ground-state emission. This behavior is explained in terms of the laser Q-switching due to the charge carrier density redistribution between the excited and ground states.

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KW - 85.35.Be

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Anomalous dynamic characteristics of semiconductor quantum-dot lasers generating on two quantum states

Abstract

Keywords

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