Broadly tunable mode-locked Ho:YAG ceramic laser around 2.1 ¿m

Identifier:  PC:2903

Handle: https://hdl.handle.net/20.500.11797/PC2903

Authors:  Mateos, X.; Wang, Y.; Lan, R.; Li, J.; Hu, C.; Li, C.; Suomalainen, S.; Härkönen, A.; Guina, M.; Petrov, V.; Griebner, U.

Abstract:
A passively mode-locked Ho:YAG ceramic laser around 2.1 ¿m is demonstrated using GaSb-based near-surface SESAM as saturable absorber. Stable and self-starting modelocked operation is realized in the entire tuning range from 2059 to 2121 nm. The oscillator operated at 82 MHz with a maximum output power of 230 mW at 2121 nm. The shortest pulses with duration of 2.1 ps were achieved at 2064 nm. We also present spectroscopic properties of Ho:YAG ceramics at room temperature.