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Proceedings Paper

Excited state spectral blowup induced by carrier dynamics in the ground state of a quantum dot laser
Author(s): Bryan Kelleher; David Goulding; Boguslaw Tykalewicz; Stephen P. Hegarty; Ilya Dubinkin; Nikita Federov; Thomas Erneux; Evgeny A. Viktorov
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Paper Abstract

Optical injection into the ground state (GS) of a quantum dot laser nominally emitting from the excited state (ES) can induce a switch to GS emission. Antiphase oscillations are obtained consisting of short ES pulses with GS dropouts. These disappear when the master laser is sufficiently detuned or weak and CW emission from the (multimode) ES is regained. The pulses are accompanied by a notable expansion of the ES optical spectrum, which disappears abruptly when the system switches to the CW ES operation. The phenomenon arises due to the large difference in timescales between the ns scale pulses and the ps scale carrier distribution times of the quantum dots.

Paper Details

Date Published: 22 February 2017
PDF: 5 pages
Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 1009818 (22 February 2017); doi: 10.1117/12.2252476
Show Author Affiliations
Bryan Kelleher, Univ. College Cork (Ireland)
Tyndall National Institute (Ireland)
David Goulding, Tyndall National Institute (Ireland)
Cork Institute of Technology (Ireland)
Boguslaw Tykalewicz, Tyndall National Institute (Ireland)
Cork Institute of Technology (Ireland)
Stephen P. Hegarty, Tyndall National Institute (Ireland)
Cork Institute of Technology (Ireland)
Ilya Dubinkin, ITMO Univ. (Russian Federation)
Nikita Federov, ITMO Univ. (Russian Federation)
Thomas Erneux, Optique Nonlinéaire Théorique (Belgium)
Evgeny A. Viktorov, ITMO Univ. (Russian Federation)
Optique Nonlinéaire Théorique (Belgium)


Published in SPIE Proceedings Vol. 10098:
Physics and Simulation of Optoelectronic Devices XXV
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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