Bewerber:
Dr. Ralph Delmdahl, Rainer Pätzel, Dr. Kai Schmidt, Coherent GmbH, Deutschland
Dr. Alexander Usoskin, Bruker HTS GmbH, Deutschland

Abstract:
Near-UV excimer laser technology enables highest current density in second-generation high temperature superconducting (HTS) wire, known as coated conductors, by pulsed laser deposition of complex crystalline thin films without subsequent finishing processes. Project groups at Coherent GmbH and at Bruker HTS GmbH have jointly advanced this technology from laboratory scale to cost effective large-scale production. Coated conductor architecture, high power 308 nm laser technology and beam concepts have evolved and were successfully employed in a publicly funded electric grid project. Excimer laser technology has been leveraged in reel-to-reel production at Bruker HTS and will now be transferred to large-scale mass manufacturing driven by growing UV laser output power. Coated conductor based electrical components such as fault current limiters preventing power grid outages enable efficient energy transmission and reduce carbon dioxide emission.