Sub-10 optical-cycle passively mode-locked Tm:(Lu2/3Sc1/3)2O3 ceramic laser at 2 µm

Identifier:  imarina:5132635

Handle: https://hdl.handle.net/20.500.11797/imarina5132635

Authors:  Wang, YC; Jing, W; Loiko, P; Zhao, YG; Huang, H; Mateos, X; Suomalainen, S; Härkönen, A; Guina, M; Griebner, U; Petrov, V

Abstract:
A Tm-doped mixed sesquioxide ceramic laser is mode-locked near 2 µm using InGaAsSb quantum-well semiconductor saturable absorber and chirped mirrors for dispersion compensation. Maximum average output power of 175 mW is achieved for a pulse duration of 230 fs at a repetition rate of 78.9 MHz with a 3% output coupler. Applying a 0.2% output coupler pulses as short as 63 fs are generated at 2.057 µm.