Abstract
A well known pattern formation mechanism in nonlinear optical resonators is "off-resonant" excitation. If the central frequency of the gain line of the laser ωA is larger than the resonator resonance frequency ωR, then the excess of frequency Δω = ωA− ωR causes transverse (spatial) modulation of the laser fields, with characteristic transverse wavenumber k obeying a dispersion relation ak2 = Δω (a is the diffraction coefficient of the resonator). Typical for off-resonance patterns is that the dominating transverse wavelength of emerging patterns scales with the square root of diffraction constant, and strongly depends on the off-resonance detuning.
© 2000 IEEE
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