Set of numerical coronagraphic simulations with a maximum phase-shift (Δφ_max) on the vortex mask of 0.001 radian for each bandpass. We chose five different bandpasses: Δλ = 2 nm (corresponding to a single-mode Laser diode), 100 nm, 150 nm (R-filter), 200 nm, and finally 250 nm (R to I astronomical filters). These simulations show the anti-symmetric smearing (bottom: l_p =  −2, top: l_p = 2 images) due to the Wollaston optical component and also a high-contrast in the residual speckle due to the wavelength filtering by the coronagraphic device. Indeed, only wavelengths with larger phase-shift errors on the phase-mask (λ_max,λ_min) have a significant effect on the final coronagraphic images. We recall that for λ_max the effect is less than λ_min due to a better Strehl ratio.