Optically-coupled memory systems are disclosed. In one embodiment, a system memory includes a carrier substrate, and a controller attached to the carrier substrate and operable to transmit and receive optical signals, and first and second memory modules. The module substrate of the first memory module...http://www.google.com.au/patents/US8040711?utm_source=gb-gplus-sharePatent US8040711 - Apparatus and methods for optically-coupled memory systems