Stable generation of multi-channel lasers that find application in optical communication systems with spectral multiplexing is studied theoretically. A computational model to determine the frequencies and increments of self-oscillating perturbations depending on the key laser parameters and the characteristics of the channels cross-saturation is proposed. It is shown that for typical conditions of an erbium-doped fiber laser, multichannel generation with a large number of channels (more than ten), although stable, is characterized by large fluctuations of channel power due to the very small decay increments of perturbations caused by small technical fluctuations of the laser parameters.
42.00.00 Optics
42.55.-f Lasers
42.55.Wd Fiber lasers
$^1$Faculty of Physics,
$^2$Faculty of Computational Mathematics and Cybernetics M.V.Lomonosov Moscow State University, Lenin Hills, 1, b.2 MSU, 119991, Moscow, Russia
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