High-power erbium-doped fiber laser mode locked by a semiconductor saturable absorber.
Using an erbium-doped fiber laser (EDFL) passively mode locked by a semiconductor saturable absorber, we generate 5.5-ps pulses of a 2.3-nJ/pulse, which are more than three times higher in energy than for other reported EDFL's. We show that, by introduction of a linear loss element within the cavity, multiple pulsing behavior at high pump powers can be suppressed. We also determine the saturable-absorber characteristics-absorbance versus wavelength near band gap-that are necessary to produce short mode-locked pulses.
Barnett
B C
BC
Rahman
L
L
Islam
M N
MN
Chen
Y C
YC
Bhattacharya
P
P
Riha
W
W
Reddy
K V
KV
Howe
A T
AT
Stair
K A
KA
Iwamura
H
H
Friberg
S R
SR
Mukai
T
T