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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
    Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 23 Jan 2012 14:07
    Last modified: 06 Sep 2014 23:33
    URI: http://strathprints.strath.ac.uk/id/eprint/36943

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