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

Tierno, A. and Radwell, N. and Ackemann, T. (2010) Time-resolved spectra of a self-pulsing quantum dot laser. In: Semiconductor Lasers and Laser Dynamics IV. Proc. SPIE, 7720 . SPIE--The International Society for Optical Engineering., 77202H.

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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.(1)

Item type: Book Section
ID code: 36943
Keywords: quantum dot laser, self-pulsing , linewidth enhancement factor , cavity, dynamics, amplifiers, oscillations, filamentation, mode-competition, semiconductor-lasers, Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Depositing user: Pure Administrator
Date Deposited: 23 Jan 2012 14:07
Last modified: 15 Apr 2015 09:27
Related URLs:
URI: http://strathprints.strath.ac.uk/id/eprint/36943

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