The present invention relates to an optical multi wavelength selective device, {HEAD ~ more precisely a multi wavelength selective switch} for rerouting and {TAIL ~ switching} of wavelengths in an optical network, in which each wavelength may be separately rerouted 
for
The present invention relates to an optical multi wavelength selective device , { HEAD ~ more precisely a multi wavelength selective switch } for rerouting and { TAIL ~ switching } of wavelengths in an optical network , in which each wavelength may be separately rerouted
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