Statistical cross correlations between mode intensities in individual pulses from a multimode dye laser have been studied by using a Fizeau interferometer and a high-resolution linear photodiode array. We find that positive intensity cross correlations develop between modes separated by certain characteristic frequencies. This appears to be a result of spatial hole burning in the standing-wave cavity. The gain competition between certain modes is minimized because of the spatial inhomogeneity of the mode intensity distributions in the gain medium.
© 1984 Optical Society of America
L. A. Westling, M. G. Raymer, and J. J. Snyder, "Single-shot spectral measurements and mode correlations in a multimode pulsed dye laser," J. Opt. Soc. Am. B 1, 150-154 (1984)