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- W2086968033 abstract "Studying cavity quantum electrodynamical effects is an emerging and important field of research for the understandingof the many body quantum theory as well as for the generation of a new type of efficient lasers. Here we report adramatic change in the photon statistics of quantum dot based micropillar lasers where a finite fraction of the emission isreflected back into the microcavity after a roundtrip time τ in an external cavity, where τ greatly exceeds the coherencetime. Photon bunching was observed above the threshold current where the second order autocorrelation function g(2)(τ)at zero-lag can reach values up to 3.51±0.06. The change in the photon statistics of the two non-degenerated fundamentalmodes were found to be correlated, indicating non-trivial interactions between both cavity modes. Furthermore theoptical feedback led to revivals of the bunching signal in integer multiples of the round trip time of the external cavityand to a decrease in the coherence time of the laser. These phenomena compare well with milliwatt chaotic lasersinduced by an external feedback, indicating that chaos might occur in the nanowatt lasing regime where fluctuations inthe photon statistics are in the leading order." @default.
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- W2086968033 date "2012-06-01" @default.
- W2086968033 modified "2023-10-03" @default.
- W2086968033 title "Quantum dot microlasers with external feedback: a chaotic system close to the quantum limit" @default.
- W2086968033 doi "https://doi.org/10.1117/12.921783" @default.
- W2086968033 hasPublicationYear "2012" @default.
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