Modern datacenters, high-performance computing (HPC) centers, and supercomputers demand dense highbandwidth cost-effective interconnect solutions for the fabric between various computing resources and network elements. The bisection bandwidth of this fabric is a key factor in determining the overall performance of the system. As applications (internet search, cloud applications, complex computations, virtualization) and hardware (faster multicore processors, more I/O per server) put more demands on resources, the fabric bandwidth must scale as well. This technical note reviews various parallel optical technologies and then focus on embedded solutions that enable customers to bring differentiated systems to market.