Next-generation parallel-optical data links

Parallel-optical data links are now available and designed into many next-generation telecom/datacom central-office switches and routers. A line of products from Agilent Technologies is based upon a new platform and components developed at Agilent Laboratories. These links cost less per channel than serial links and allow about six times higher I/O density. The current generation of twelve-channel modules operates at 2.5 GBd over distances up to 600 m on optimized multimode fiber. These improvements will enable the continued exponential growth rate of Internet capacity over the next couple of years. In order to progress further up this growth curve, next-generation parallel-optical data links are expected to operate at 10 GBd. A research and development project at Agilent Labs is focussing on next-generation parallel-optical data links. It is called Parallel Optics for SuperHighways or POSH. This name is intended to reflect the continuing role that parallel optics will play in the future network of data communications superhighways.