Patent ID: 11894035
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The holographic data storage system of claim 2, comprising a reference waveguide network, formed of one or more further multimode optical waveguides, the reference waveguide network having an in-coupling region for receiving the reference beam from the emitter system and multiple out-coupling regions, each of the multiple recording regions of the holographic recording medium also being optically coupled to a corresponding one of the multiple out-coupling regions of the reference waveguide network, the controller configured to control at least one optical characteristic of the reference beam or at least one controllable guiding element of the reference waveguide network, so as to cause the reference beam to be guided from the in-coupling region of the reference waveguide network to any selected one of the multiple out-coupling regions of the reference waveguide network, the controller configured, in said write interval, to cause the reference beam to be guided to the out-coupling region optically coupled to said same recording region.