Patent ID: 6947204
Filing Date: 2005-09-20
Classification: G02B,H04J

Abstract:
1. An optical filtering system comprising: an optical separating sub-system; said optical separating sub-system being capable of separating input optical radiation from at least one input beam/port into distinct input channels; an optical recombining sub-system; a selectable filtering sub-system including at least one switchable component, said selectable filtering sub-system being interposed optically between said optical separating sub-system and said optical recombining sub-system; and, said selectable filtering sub-system being capable of filtering said distinct input channels to effectuate desired distinct output channels; said optical recombining subsystem being capable of redirecting and recombining said desired distinct output channels for output; and wherein said separating sub-system comprises a first separating diffraction grating, and a second separating diffraction grating; and, wherein said recombining sub-system comprises a first recombining diffraction grating, and a second recombining diffraction grating.