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Spacing statistics in two-mode random lasing

Oleg Zaitsev
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Abstract

The distribution of spacings between the lasing frequencies for an ensemble of random lasers in the two-mode regime was computed. The random lasers are implemented as open chaotic cavities filled with an active medium. The spectral properties of the passive cavities are modeled with non-Hermitian random matrices. The spacing distribution is found to depend on the relation between the gain-profile width and the mean spacing of the passive-cavity modes. The distribution displays mode repulsion and, under certain conditions, agrees with the Wigner surmise. The role of mode competition is discussed.

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Oleg Zaitsev. 2007-10-29. Spacing statistics in two-mode random lasing. https://doi.org/10.1103/physreva.76.043842

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