Author:
Micheletti Paolo,Senica Urban,Forrer Andres,Cibella Sara,Torrioli Guido,Frankié Martin,Faist Jérôme,Beck Mattias,Scalari Giacomo
Abstract
We report THz optical soliton formation in defect-less ring QCL featuring anomalous dispersion. Free-running spectra with sech2 envelopes are presented together with SWIFT measurement showing ∼12 ps pulses in the reconstructed emission time-profile.