Unconventional collective normal-mode coupling in quantum-dot-based bimodal microlasers
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We analyze the occurrence of normal-mode coupling (NMC) in bimodal lasers attributed to the collective interaction of the cavity field with a mesoscopic number of quantum dots (QDs). In contrast to the conventional NMC, here we observe locking of the frequencies and splitting of the linewidths of the system's eigenmodes in the coherent coupling regime. The theoretical analysis of the incoherent regime is supported by experimental observations where the emission spectrum of one of the orthogonally polarized modes of a bimodal QD micropillar laser demonstrates a distinct two-peak structure.
Khanbekyan , M , Leymann , H A M , Hopfmann , C , Foerster , A , Schneider , C , Höfling , S , Kamp , M , Wiersig , J & Reitzenstein , S 2015 , ' Unconventional collective normal-mode coupling in quantum-dot-based bimodal microlasers ' Physical Review. A, Atomic, molecular, and optical physics , vol 91 , no. 4 , 043840 , pp. 1-5 . DOI: 10.1103/PhysRevA.91.043840
Physical Review. A, Atomic, molecular, and optical physics
©2015 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://dx.doi.org/10.1103/PhysRevA.91.043840 .
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