Material system comprised of silicon and one or more of the following-- oxygen, nitrogen, carbon, germanium, fluorine, phosphorus, and boron, used for optical waveguide components and devices, namely, amplitude filters, phase filters, dispersion compensators, variable optical attenuators, switches or add/drop multiplexers for use in telecommunications

'add/drop':40 'amplitud':29 'attenu':37 'boron':20 'carbon':15 'compens':34 'compon':25 'compris':3 'devic':27 'dispers':33 'filter':30,32 'fluorin':17 'follow':12 'germanium':16 'materi':1 'multiplex':41 'name':28 'nitrogen':14 'one':7 'optic':23,36 'oxygen':13 'phase':31 'phosphorus':18 'silicon':5 'switch':38 'system':2 'telecommun':45 'use':21,43 'variabl':35 'waveguid':24

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