Solid-state Er:Yb:glass laser mode-locked by using single-wall carbon nanotube thin film.
We design single-wall carbon nanotube (SWNT) thin-film saturable absorbers (SAs) integrated onto semiconductor distributed Bragg reflectors for mode-locking solid-state Er:Yb:glass lasers. We characterize the low nonsaturable loss, high-damage-threshold SWNT SAs and verify their operation up to a pulse fluence of 2 mJ/cm(2). We demonstrate passive fundamental continuous-wave mode locking with and without group-delay dispersion compensation. Without compensation the laser produces chirped 1.8 ps pulses with a spectral width of 3.8 nm. With compensation, we obtain 261 fs Fourier-transform-limited pulses with a spectral width of 9.6 nm.
Fong
Kok Hann
KH
Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.
Kikuchi
Kazuro
K
Goh
Chee S
CS
Set
Sze Y
SY
Grange
Rachel
R
Haiml
Markus
M
Schlatter
Adrian
A
Keller
Ursula
U