The Universities of Strathclyde, St Andrews, Heriot-Watt and Glasgow, together with Stanford University and the California Institute of Technology (Caltech), are collaborating with local industry to build enduring relationships which form the basis of a network which helps to sustain the economic impact of photonics in both the UK and California.  The project, SU2P, capitalises on leading research in the photonics sector, in fields including life sciences and renewable energy, and the commercial opportunities the research offers.