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Optics Communications

Latent heat of a homogeneously broadened two-mode laser

L. Mandeļ

Published Aug 1, 1982• 8 citations
Publisher
DOI
10.1016/0030-4018(82)90247-4

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The color pump noise has been introduced into a two-mode laser system and its effects on the laser system in both homogeneously and inhomogeneously broadened media have been studied.The results show that the correlation time of the color pump noise can make the distribution of the laser intensity concentrate in the region where the laser intensity have larger values, enhance the mean of the laser intensity and stabilize the the system in a homogeneously broadened two-mode laser system; meanwhile, it strengthen the laser intensity of the stronger mode, recedes the laser intensity of the weaker mode and increases the competition between two mode in a inhomogeneously broadened two-mode laser system.Comparatively, it more clear that the influences of the color pump noise on the statistical properties of laser system in inhomogeneously broadened media than that in homogeneously broadened media.
The equations previously derived for the intensity fluctuations of a two-mode ring laser are applied to a homogeneously broadened laser. It is shown that the mean light intensity of the more lossy mode passes through a maximum and then tends to zero as the excitation is increased. The probability distribution of the intensity of each mode may exhibit two peaks, and spontaneous switching between the intensities associated with the peaks may occur. This is manifest in relative intensity fluctuations of the more lossy mode that can be much greater than unity. Estimates are given for the characteristic switching time.