Negligible penalty all-optical routing using a 12 × 12 passive InP wavelength-selective router

This work demonstrates transmission at 2.5 Gbit/s across two wavelength-division multiplexing (WDM) network nodes, constructed using counter-propagating semiconductor optical amplifier (SOA) wavelength converters and an integrated wavelength-selective router separated by 45 km of fiber, with an overall penalty of 0.6 dB. Minimal degradation of the eye diagram is evident across the whole system. Full utilization of the capacity of the router would allow an aggregate 360-Gbit/s node capacity for a WDM channel of 2.5 Gb/s.

Manufacturing clarity

A framework has been developed for the UK economy that categorizes companies who provides a more defined perspective on the structure of the economy in order to help decision makers, government and industry to achieve sustained economic growth. The Institute for Manufacturing (IfM) has established a broader definition of manufacturing that equates manufacturing to the full cycle of activities from research and development, through design, production, logistics and services, to end of life management, within an economic and social context. This approach recognizes that manufacturing firms turn ideas into products and services and that they are inventors, innovators, global supply chain managers and service providers. It is hoped that this categorization provides policy-makers with a clear frame of reference for discussing measures to adapt interventions to address the needs of the diverse set of companies.