Investigation of transition dynamics in a quantum-dot laser optically pumped by femtosecond pulses

EU Rafailov, AD McRobbie, MA Cataluna, L O'Faolain, W Sibbett, DA Livshits

Research output: Contribution to journalArticlepeer-review

Abstract

The behavior of a quantum-dot edge-emitting laser, optically pumped by femtosecond pulses, has been investigated. It has been observed that pulses generated by the laser from ground-state transitions have longer durations than those generated from the excited states. Interestingly, the shortest pulses were generated when the transitions from the first excited-state were dominant.
Original languageEnglish
Article number041101
JournalApplied Physics Letters
Volume88
DOIs
Publication statusPublished - 23 Jan 2006

Bibliographical note

Funding support from the UK Engineering and Physical Sciences Research Council through the Ultrafast Photonics Collaboration is acknowledged. The authors also acknowledge partial financial support of FCT-Fundação para a Ciência e Tecnologia, Portugal, through scholarship SFRH/BD/10879/2002 attributed to M.A.C.

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