Time-resolved spectra of a self-pulsing quantum dot laser

A. Tierno; N. Radwell; T. Ackemann

doi:10.1117/12.863582

28 April 2010 Time-resolved spectra of a self-pulsing quantum dot laser

A. Tierno, N. Radwell, T. Ackemann

Proceedings Volume 7720, Semiconductor Lasers and Laser Dynamics IV; 77202H (2010) https://doi.org/10.1117/12.863582
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the Littrow configuration is applied. The frequency resolved optical spectra reveal different envelope shifts between the two cases. This might be related to a change of phase-amplitude coupling across the gain maximum in agreement with the expectation for a two level system. The time scale and bifurcation scenario suggest that these are opto-thermal pulsation like those reported in quantum well amplifiers.

Citation Download Citation

A. Tierno, N. Radwell, and T. Ackemann "Time-resolved spectra of a self-pulsing quantum dot laser", Proc. SPIE 7720, Semiconductor Lasers and Laser Dynamics IV, 77202H (28 April 2010); https://doi.org/10.1117/12.863582

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