The effect of slow passage in the pulse-pumped quantum dot laser

G.S. Sokolovskii, M. Abu Saa, J. Danckaert, V.V. Dudelev, A.G. Deryagin, I.I. Novikov, M.V. Maximov, A.E. Zhukov, V.M. Ustinov, V.I. Kuchinskii, W. Sibbett, E.U. Rafailov, E.A. Viktorov, T. Erneux

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In recent years, quantum-dot (QD) semiconductor lasers attract significant interest in many practical applications due to their advantages such as high-power pulse generation because to the high gain efficiency. In this work, the pulse shape of an electrically pumped QD-laser under high current is analyzed. We find that the slow rise time of the pulsed pump may significantly affect the high intensity output pulse. It results in sharp power dropouts and deformation of the pulse profile. We address the effect to dynamical change of the phase-amplitude coupling in the proximity of the excited state (ES) threshold. Under 30ns pulse pumping, the output pulse shape strongly depends on pumping amplitude. At lower currents, which correspond to lasing in the ground state (GS), the pulse shape mimics that of the pump pulse. However, at higher currents the pulse shape becomes progressively unstable. The instability is greatest when in proximity to the secondary threshold which corresponds to the beginning of the ES lasing. After the slow rise stage, the output power sharply drops out. It is followed by a long-time power-off stage and large-scale amplitude fluctuations. We explain these observations by the dynamical change of the alpha-factor in the QD-laser and reveal the role of the slowly rising pumping processes in the pulse shaping and power dropouts at higher currents. The modeling is in very good agreement with the experimental observations.

Original languageEnglish
Title of host publicationSemiconductor lasers and laser dynamics VI
EditorsKrassimir Panajotov, Marc Sciamanna, Angel Valle, Rainer Michalzik
PublisherSPIE
Number of pages6
ISBN (Print)978-1-628-41082-2
DOIs
Publication statusPublished - Dec 2014
EventSemiconductor lasers and laser dynamics VI - Brussels, Belgium
Duration: 14 Apr 201417 Apr 2014

Publication series

NameSPIE proceedings
PublisherSPIE
Volume9134
ISSN (Print)0277-786X

Conference

ConferenceSemiconductor lasers and laser dynamics VI
CountryBelgium
CityBrussels
Period14/04/1417/04/14

Fingerprint

Quantum dot lasers
Quantum Dots
Excited states
Laser pulses
quantum dots
Pumps
Laser
Pulse shaping
pulses
Ground state
Semiconductor quantum dots
lasers
Semiconductor lasers
Drop out
high current
dropouts
pumping
Excited States
Proximity
Pump

Bibliographical note

G. S. Sokolovskii ; M. Abu Saa ; J. Danckaert ; V. V. Dudelev ; A. G. Deryagin ; I. I. Novikov ; M. V. Maximov ; A. E. Zhukov ; V. M. Ustinov ; V. I. Kuchinskii ; W. Sibbett ; E. U. Rafailov ; E. A. Viktorov and T. Erneux, " The effect of slow passage in the pulse-pumped quantum dot laser ", Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 913405 (May 2, 2014).

Copyright 2014. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

DOI: http://dx.doi.org/10.1117/12.2051899

Keywords

  • quantum dot devices
  • semiconductor lasers

Cite this

Sokolovskii, G. S., Abu Saa, M., Danckaert, J., Dudelev, V. V., Deryagin, A. G., Novikov, I. I., ... Erneux, T. (2014). The effect of slow passage in the pulse-pumped quantum dot laser. In K. Panajotov, M. Sciamanna, A. Valle, & R. Michalzik (Eds.), Semiconductor lasers and laser dynamics VI [913405] (SPIE proceedings; Vol. 9134). SPIE. https://doi.org/10.1117/12.2051899
Sokolovskii, G.S. ; Abu Saa, M. ; Danckaert, J. ; Dudelev, V.V. ; Deryagin, A.G. ; Novikov, I.I. ; Maximov, M.V. ; Zhukov, A.E. ; Ustinov, V.M. ; Kuchinskii, V.I. ; Sibbett, W. ; Rafailov, E.U. ; Viktorov, E.A. ; Erneux, T. / The effect of slow passage in the pulse-pumped quantum dot laser. Semiconductor lasers and laser dynamics VI. editor / Krassimir Panajotov ; Marc Sciamanna ; Angel Valle ; Rainer Michalzik. SPIE, 2014. (SPIE proceedings).
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Sokolovskii, GS, Abu Saa, M, Danckaert, J, Dudelev, VV, Deryagin, AG, Novikov, II, Maximov, MV, Zhukov, AE, Ustinov, VM, Kuchinskii, VI, Sibbett, W, Rafailov, EU, Viktorov, EA & Erneux, T 2014, The effect of slow passage in the pulse-pumped quantum dot laser. in K Panajotov, M Sciamanna, A Valle & R Michalzik (eds), Semiconductor lasers and laser dynamics VI., 913405, SPIE proceedings, vol. 9134, SPIE, Semiconductor lasers and laser dynamics VI, Brussels, Belgium, 14/04/14. https://doi.org/10.1117/12.2051899

The effect of slow passage in the pulse-pumped quantum dot laser. / Sokolovskii, G.S.; Abu Saa, M.; Danckaert, J.; Dudelev, V.V.; Deryagin, A.G.; Novikov, I.I.; Maximov, M.V.; Zhukov, A.E.; Ustinov, V.M.; Kuchinskii, V.I.; Sibbett, W.; Rafailov, E.U.; Viktorov, E.A.; Erneux, T.

Semiconductor lasers and laser dynamics VI. ed. / Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik. SPIE, 2014. 913405 (SPIE proceedings; Vol. 9134).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - The effect of slow passage in the pulse-pumped quantum dot laser

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AU - Abu Saa, M.

AU - Danckaert, J.

AU - Dudelev, V.V.

AU - Deryagin, A.G.

AU - Novikov, I.I.

AU - Maximov, M.V.

AU - Zhukov, A.E.

AU - Ustinov, V.M.

AU - Kuchinskii, V.I.

AU - Sibbett, W.

AU - Rafailov, E.U.

AU - Viktorov, E.A.

AU - Erneux, T.

N1 - G. S. Sokolovskii ; M. Abu Saa ; J. Danckaert ; V. V. Dudelev ; A. G. Deryagin ; I. I. Novikov ; M. V. Maximov ; A. E. Zhukov ; V. M. Ustinov ; V. I. Kuchinskii ; W. Sibbett ; E. U. Rafailov ; E. A. Viktorov and T. Erneux, " The effect of slow passage in the pulse-pumped quantum dot laser ", Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 913405 (May 2, 2014). Copyright 2014. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.2051899

PY - 2014/12

Y1 - 2014/12

N2 - In recent years, quantum-dot (QD) semiconductor lasers attract significant interest in many practical applications due to their advantages such as high-power pulse generation because to the high gain efficiency. In this work, the pulse shape of an electrically pumped QD-laser under high current is analyzed. We find that the slow rise time of the pulsed pump may significantly affect the high intensity output pulse. It results in sharp power dropouts and deformation of the pulse profile. We address the effect to dynamical change of the phase-amplitude coupling in the proximity of the excited state (ES) threshold. Under 30ns pulse pumping, the output pulse shape strongly depends on pumping amplitude. At lower currents, which correspond to lasing in the ground state (GS), the pulse shape mimics that of the pump pulse. However, at higher currents the pulse shape becomes progressively unstable. The instability is greatest when in proximity to the secondary threshold which corresponds to the beginning of the ES lasing. After the slow rise stage, the output power sharply drops out. It is followed by a long-time power-off stage and large-scale amplitude fluctuations. We explain these observations by the dynamical change of the alpha-factor in the QD-laser and reveal the role of the slowly rising pumping processes in the pulse shaping and power dropouts at higher currents. The modeling is in very good agreement with the experimental observations.

AB - In recent years, quantum-dot (QD) semiconductor lasers attract significant interest in many practical applications due to their advantages such as high-power pulse generation because to the high gain efficiency. In this work, the pulse shape of an electrically pumped QD-laser under high current is analyzed. We find that the slow rise time of the pulsed pump may significantly affect the high intensity output pulse. It results in sharp power dropouts and deformation of the pulse profile. We address the effect to dynamical change of the phase-amplitude coupling in the proximity of the excited state (ES) threshold. Under 30ns pulse pumping, the output pulse shape strongly depends on pumping amplitude. At lower currents, which correspond to lasing in the ground state (GS), the pulse shape mimics that of the pump pulse. However, at higher currents the pulse shape becomes progressively unstable. The instability is greatest when in proximity to the secondary threshold which corresponds to the beginning of the ES lasing. After the slow rise stage, the output power sharply drops out. It is followed by a long-time power-off stage and large-scale amplitude fluctuations. We explain these observations by the dynamical change of the alpha-factor in the QD-laser and reveal the role of the slowly rising pumping processes in the pulse shaping and power dropouts at higher currents. The modeling is in very good agreement with the experimental observations.

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KW - semiconductor lasers

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DO - 10.1117/12.2051899

M3 - Conference contribution

AN - SCOPUS:84902491309

SN - 978-1-628-41082-2

T3 - SPIE proceedings

BT - Semiconductor lasers and laser dynamics VI

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A2 - Sciamanna, Marc

A2 - Valle, Angel

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Sokolovskii GS, Abu Saa M, Danckaert J, Dudelev VV, Deryagin AG, Novikov II et al. The effect of slow passage in the pulse-pumped quantum dot laser. In Panajotov K, Sciamanna M, Valle A, Michalzik R, editors, Semiconductor lasers and laser dynamics VI. SPIE. 2014. 913405. (SPIE proceedings). https://doi.org/10.1117/12.2051899