Multicore chip with holographic optical interconnects

摘要

The invention provides optical interconnects of data-processing cores of multicore chips by means of digital planar holographic microchips on a host chip. The device comprises “N” laser light sources that generate lights of “N” different wavelength and “N” data-processing cores that produce data. Each data-processing core contains optical signal receivers and modulators/transceivers that receive lights from the laser light sources and have a function of modulating the light obtained from the laser light sources with the data produced by the cores thus producing modulated light signals which are further processed by the holographic microchip and then decoded by the receivers. The device is efficient in that it replaces electrical interconnects between the cores with optical interconnects and can be matched to current semiconductor production technology.

主权项

1. A host chip with holographic optical interconnects comprising:
a substrate; “N” laser light sources that generate lights of “N” different wavelength; “N” data-processing cores that produce data and are formed on the substrate, the data processing cores comprising optical signal receivers and modulators/transceivers that receive lights from the laser light sources and have a function of modulating the light obtained from the laser light sources with the data produced by the cores thus producing modulated light signals; first optical coupling means for optically coupling the laser light sources with the modulators/transceivers; at least one holographic microchip formed on the substrate of the host chip that comprises a first digital planar hologram; second optical coupling means for optically coupling the modulators/transceivers with the at least one holographic microchip; light splitting means on the at least one holographic microchip for spatially splitting the modulated light signals obtained from the modulators/transceivers at least into (N-1)N optical copy signals; third optical coupling means for optically coupling the modulated optical copy signals to receivers of all data-processing cores except one that generates said modulated optical copy signals, the receivers having a function of decoding the obtained optical copy signals; and an auxiliary holographic microchip formed on the substrate of the host chip between the “N” light sources and the data processing cores and having means for dividing the light obtained from laser light sources into “N” component laser lights of different wavelengths; fourth optical coupling means for optically coupling the “N” light sources with the auxiliary holographic microchip; and fifth optical coupling means for optically coupling the auxiliary holographic microchip with the each data processing core.