Silicon photonics

FEATURE

Silicon photonics extends its reach

The optical communications market is undergoing a seismic shift. This is driven in part by the emerging role of internet content providers who have established themselves not only as leading users of interconnect technology, but also as a disruptive force aggressively transitioning the market toward a fast-paced cloud, software-driven, and data centre-optimised design model. The widespread adoption of cloud-based services is leading to a tremendous increase in deployed capacity and a fast ramp-up of 100 Gigabit Ethernet, small form factor, short-reach interconnects.

FEATURE

The problem with packaging

At a time when internet giants are demanding faster and cheaper optical networking products for their data centres, silicon photonics has yet to deliver. At this year’s Optical Fiber Conference (OFC) in Los Angeles, Facebook network architect, Yuval Bachar, again called for optical links priced at $1 per gigabit running over singlemode fibre. Yet commercial development of silicon photonics products isn’t progressing fast enough to keep up with the industry’s desires.

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CableLabs is spearheading efforts to develop a proposal that uses coherent optics to dramatically boost the capacity of hybrid fibre coaxial networks, reports Andy Extance

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Systems vendors are using intelligent software to squeeze more performance from optical networks. Pauline Rigby reports on developments at OFC 2017