Patent ID: 11953802
Assignee: NOKIA SOLUTIONS AND NETWORKS OY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An apparatus, comprising:
an array of optical ports including a first optical port and a plurality of second optical ports;
a beam-steering device optically coupled to the array of optical ports and having a beam-steering surface including a plurality of configurable pixels; and
a virtually imaged phase-array (VIPA) disperser optically coupled between the array of optical ports and the beam-steering device, wherein:
the apparatus is configurable to selectively route a plurality of wavelength channels between the first optical port and a selected set of the second optical ports by way of the VIPA disperser and the beam-steering surface;
the beam-steering device is a micro-display comprising the plurality of configurable pixels;
the VIPA disperser is configured to produce two or more diffraction orders; and
the beam-steering device is configured to receive the two or more diffraction orders and implement controllable optical-signal attenuation by applying different relative phase shifts to different ones of the diffraction orders corresponding to a selected one of the wavelength channels to control a relative degree of constructive and destructive interference of the light at a selected one of the second optical ports.