January 01, 2009

Optical injection of quantum dot and quantum dash semiconductor lasers

  • Besnard P.
  • Blair S.
  • Dehaese O.
  • Duan G.
  • Grillot F.
  • Le Gouezigou L.
  • Le Gouezigou O.
  • Lelarge F.
  • Loualiche S.
  • Martinez A.
  • Merghem K.
  • Piron R.
  • Poingt F.
  • Pommereau F.
  • Ramdane A.
  • Rousseau B.
  • Shen A.

In this communication, we report experimental results on optical injection of quantum dot (Q-dot) and quantum dash (Q-dash) semiconductor multi-mode lasers. We show the impact of a strong damping on optical injection map and reveal the observation of a random phenomenon of multi-excitability on such structure. These properties are obtained thanks to the different structural properties of Q-dash and Q-dot and by comparing Q-dash lasers having different numbers of Q-dash plans. The general overview of optical injection of Q-dash and Q-dot do not reveal unknown behaviors and show for these components the fundamental role of the damping factor, of the confinement factor and of the differential gain.

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