Sartorius, B.B.SartoriusStanze, D.D.StanzeGöbel, T.T.GöbelSchmidt, D.D.SchmidtSchell, M.M.Schell2022-03-042022-03-042012https://publica.fraunhofer.de/handle/publica/22796210.1007/s10762-011-9849-7Terahertz systems can profit from technologies developed originally for telecom applications. Recent developments on telecom-based key devices are summarized and ways towards CW systems with highest flexibility and excellent performance at reasonable costs are sketched.en621535journal article