In memoriam of Prof Dr Wolfgang Karthe
Enabler and networker for Jena as a centre for optics
Prof. Dr. Wolfgang Karthe
Published:
The Institute of Applied Physics (IAP) at the University of Jena sadly mourns the loss of Professor Dr Wolfgang Karthe, who passed away on 21 March 2025. Prof Karthe was not only a founding member of the IAP in 1990, but also a key figure in the establishment of the Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), which was founded at about the same time as the IAP.
Early years and impact in Jena
Wolfgang Kathe's involvement in Jena began in the 1970s. After his professorship in 1981, Prof Kathe became head of the ‘Optics of Small Structures’ (OKS) department. During this time, his research team focussed closely on the production and investigation of optical waveguiding structures, laying a cornerstone for later research at the IAP. During this time, co-operation with ZEISS was intensified at the Jena site through contract research.
Foundation of the IAP and his impact
After German reunification in 1990, the OKS and the Jena Technikum for Coating Technology and Special Components were merged to form the IAP. Professor Karthe took on the role of the first managing director and determined the direction of the new institute. He saw himself more as a science manager who strategically and skilfully paved the way for his ‘team’ - as he liked to call his research team - during this time of transformation and far beyond. With the potential of the Jena region and the vision of a new research institute, Wolfgang Karthe convinced the Fraunhofer- Society in Munich so much that he was offered the management of this new institute - the Fraunhofer Institute for Optics and Precision Engineering in the tradition of Abbe and Zeiss was founded!
Recognition
With his commitment and expertise, Professor Karthe has strongly influenced the development of optics and photonics in Jena in the post-reunification period. His research groups in the field of integrated optics and microsystems made a name for an international scientific community as well as in the former GDR. In addition to founding both institutes - IAP and Fraunhofer IOF - he was one of 18 initiators of the Jena-based industry association OptoNet e.V. in 1999.
His commitment has laid the basis for numerous innovations and created the foundation for the success of the IAP and the Fraunhofer IOF.
The IAP and Fraunhofer IOF will honour his memory and continue his scientific work.