Head of Department
![Prof. Dr.-Ing. Ronald Freund, MBA Prof. Dr.-Ing. Ronald Freund, MBA](/fileadmin/_processed_/2/d/csm_contact_Freund_Ronald_763fd4d140.jpg)
Prof. Dr.-Ing. Ronald Freund, MBA
Head of Photonic Networks and Systems Department
Phone +49 30 31002-652
Leader of the Research Groups
Submarine and Core Systems
![Dr. rer. nat. Colja Schubert Dr. rer. nat. Colja Schubert](/fileadmin/_processed_/2/9/csm_contact_Schubert_Colja_47087e959f.jpg)
Dr. rer. nat. Colja Schubert
Head of Submarine and Core Systems Group
Phone +49 30 31002-252
Metro, Access and In-house Systems
![Prof. Dr. rer. nat. habil. Volker Jungnickel Prof. Dr. rer. nat. habil. Volker Jungnickel](/fileadmin/_processed_/1/7/csm_Jungnickel_Volker-Mitarbeitendenportrait_d442157886.jpg)
Prof. Dr. rer. nat. habil. Volker Jungnickel
Head of Metro, Access and In-house Systems Group
Phone +49 30 31002-768
Free-Space Optical Systems
![Dr.-Ing. Nicolas Perlot Dr.-Ing. Nicolas Perlot](/fileadmin/_processed_/3/5/csm_contact_Perlot_Nicolas_01_d033ca1506.jpg)
Digital Signal Processing
![Dr.-Ing. Johannes Fischer Dr.-Ing. Johannes Fischer](/fileadmin/_processed_/d/4/csm_contact_Fischer_Johannes_6fc82a3870.jpg)
Electronic Systems
![Dipl.-Ing. Jonas Hilt Dipl.-Ing. Jonas Hilt](/fileadmin/_processed_/a/2/csm_contact_Jonas_Hilt_2_125e5b1372.jpg)