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

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

Fingerprint Dive into the research topics of 'The effect of slow passage in the pulse-pumped quantum dot laser'. Together they form a unique fingerprint.

  • Research Output

    • 2 Conference contribution

    Superfocusing of high-M2 semiconductor laser beams: experimental demonstration

    Sokolovskii, G. S., Melissinaki, V., Dudelev, V. V., Losev, S. N., Soboleva, K. K., Kolykhalova, E. D., Deryagin, A. G., Kuchinskii, V. I., Viktorov, E. A., Farsari, M., Sibbett, W. & Rafailov, E. U., 2014, Semiconductor lasers and laser dynamics VI. Panajotov, K., Sciamanna, M., Valle, A. & Michalzik, R. (eds.). SPIE, 7 p. 91341N. (SPIE proceedings; vol. 9134).

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

    Open Access
    File
  • Wider-frequency combs generation, noise reduction, and repetition rate tuning in quantum-dot mode-locked lasers

    Habruseva, T., Arsenijević, D., Bimberg, D., Huyet, G. & Hegarty, S. P., 2 May 2014, Semiconductor lasers and laser dynamics VI. Panajotov, K., Sciamanna, M., Valle, A. & Michalzik, R. (eds.). Bellingham, WA (US): SPIE, 91340F. (SPIE proceedings; vol. 9134).

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

    Open Access
    File
  • Cite this

    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. (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