Low-frequency fluctuations in two-state quantum dot lasers

Evgeny A. Viktorov, Paul Mandel, Ian O̓Driscoll, Olwen Carroll, Guillaume Huyet, John Houlihan, Yann Tanguy

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


We study the feedback-induced instabilities in a quantum dot semiconductor laser emitting in both ground and excited states. Without optical feedback the device exhibits dynamics corresponding to antiphase fluctuations between ground and excited states, while the total output power remains constant. The introduction of feedback leads to power dropouts in the ground state and intensity bursts in the excited state, resulting in a practically constant total output power.

Original languageEnglish
Pages (from-to)2302-2304
Number of pages3
JournalOptics Letters
Issue number15
Publication statusPublished - 01 Aug 2006


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