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Proceedings Paper

Spatiotemporal dynamics in the near field of a 980-nm ridge waveguide pump laser diode
Author(s): Markus O. Ziegler; E. Miltenyi; M. Muenkel; J. Greif; G. Jennemann; Ingo Fischer; Harry M. Asonen; Wolfgang E. Elsaesser
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Paper Abstract

The dynamic behavior of the light output from aluminum-free 980nm ridge waveguide GaInAs/GaInAsP/GaInP pump lasers is studied in the high power regime on a picosecond time scale. Three types of the temporal evolution of the turn-on emission dynamics measured by a single-shot streak-camera can be distinguished in the near field, according to the injection current. First, at moderate pumping, the laser emission evolves through a regime of relaxation oscillations, which can be modelled by rate equations incorporating nonlinear gain. Second, at a higher current, high frequency switching between the left and right part of the active region is observed. The frequency of the switching increases proportional to the excitation current amplitude and is in the order of 10GHz. The third regime shows highly complex spatio-temporal dynamics with the coexistence of low and high frequency spatial switching and temporal pulsations. Finally, consequences of the results for applications will be discussed.

Paper Details

Date Published: 6 June 1997
PDF: 8 pages
Proc. SPIE 2994, Physics and Simulation of Optoelectronic Devices V, (6 June 1997); doi: 10.1117/12.275608
Show Author Affiliations
Markus O. Ziegler, Philipps-Univ. Marburg (Germany)
E. Miltenyi, Philipps-Univ. Marburg (Germany)
M. Muenkel, Technical Univ. Darmstadt (Germany)
J. Greif, Philipps-Univ. Marburg (Germany)
G. Jennemann, Technical Univ. Darmstadt (Germany)
Ingo Fischer, Technical Univ. Darmstadt (Germany)
Harry M. Asonen, Tampere Univ. of Technology (Finland)
Wolfgang E. Elsaesser, Technical Univ. Darmstadt (Germany)

Published in SPIE Proceedings Vol. 2994:
Physics and Simulation of Optoelectronic Devices V
Marek Osinski; Weng W. Chow, Editor(s)

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