Gain spectroscopy of a type-II VECSEL chip

C. Lammers, M. Stein, C. Berger, C. Möller, C. Fuchs, A. Ruiz Perez, A. Rahimi-Iman, Jorg Hader, Jerome V Moloney, W. Stolz, Stephan W Koch, M. Koch

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Using optical pump-white light probe spectroscopy, the gain dynamics is investigated for a vertical-external-cavity surface-emitting laser chip, which is based on a type-II heterostructure. The active region of the chip consists of a GaAs/(GaIn)As/Ga(AsSb)/(GaIn)As/GaAs multiple quantum well. For this structure, a fully microscopic theory predicts a modal room temperature gain at a wavelength of 1170 nm, which is confirmed by the experimental spectra. The results show a gain buildup on the type-II chip that is delayed relative to that of a type-I chip. This slower gain dynamics is attributed to a diminished cooling rate arising from the reduced electron-hole scattering.

Original languageEnglish (US)
Article number232107
JournalApplied Physics Letters
Volume109
Issue number23
DOIs
StatePublished - Dec 5 2016

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chips
spectroscopy
surface emitting lasers
light beams
quantum wells
pumps
cooling
cavities
room temperature
scattering
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Lammers, C., Stein, M., Berger, C., Möller, C., Fuchs, C., Ruiz Perez, A., ... Koch, M. (2016). Gain spectroscopy of a type-II VECSEL chip. Applied Physics Letters, 109(23), [232107]. https://doi.org/10.1063/1.4971333

Gain spectroscopy of a type-II VECSEL chip. / Lammers, C.; Stein, M.; Berger, C.; Möller, C.; Fuchs, C.; Ruiz Perez, A.; Rahimi-Iman, A.; Hader, Jorg; Moloney, Jerome V; Stolz, W.; Koch, Stephan W; Koch, M.

In: Applied Physics Letters, Vol. 109, No. 23, 232107, 05.12.2016.

Research output: Contribution to journalArticle

Lammers, C, Stein, M, Berger, C, Möller, C, Fuchs, C, Ruiz Perez, A, Rahimi-Iman, A, Hader, J, Moloney, JV, Stolz, W, Koch, SW & Koch, M 2016, 'Gain spectroscopy of a type-II VECSEL chip', Applied Physics Letters, vol. 109, no. 23, 232107. https://doi.org/10.1063/1.4971333
Lammers C, Stein M, Berger C, Möller C, Fuchs C, Ruiz Perez A et al. Gain spectroscopy of a type-II VECSEL chip. Applied Physics Letters. 2016 Dec 5;109(23). 232107. https://doi.org/10.1063/1.4971333
Lammers, C. ; Stein, M. ; Berger, C. ; Möller, C. ; Fuchs, C. ; Ruiz Perez, A. ; Rahimi-Iman, A. ; Hader, Jorg ; Moloney, Jerome V ; Stolz, W. ; Koch, Stephan W ; Koch, M. / Gain spectroscopy of a type-II VECSEL chip. In: Applied Physics Letters. 2016 ; Vol. 109, No. 23.
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