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