55-fs Pulse Generation from a SESAM Mode-Locked Tm:GdScO3 Laser at 2029 nm

We demonstrate SESAM mode-locking of a Tm-laser based on the orthorhombic multisite Tm:GdScO 3 crystal, generating 55-fs pulses at 2029 nm with an average output power of 158 mW at a repetition rate of 71.6 MHz.