Femtosecond pulse operation of a Tm,Ho-codoped crystalline laser near 2 microm.
We demonstrate, for the first time to our knowledge, femtosecond-regime mode locking of a Tm,Ho-codoped crystalline laser operating in the 2 microm spectral region. Transform-limited 570 fs pulses were generated at 2055 nm by a Tm,Ho:KY(WO(4))(2) laser that produced an average output power of 130 mW at a pulse repetition frequency of 118 MHz. Mode locking was achieved using an ion-implanted InGaAsSb quantum-well-based semiconductor saturable absorber mirror.
Lagatsky
A A
AA
School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, UK. aal2@st-andrews.ac.uk
Fusari
F
F
Calvez
S
S
Kurilchik
S V
SV
Kisel
V E
VE
Kuleshov
N V
NV
Dawson
M D
MD
Brown
C T A
CT
Sibbett
W
W