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.
B C
BC
Barnett
L
L
Rahman
M N
MN
Islam
Y C
YC
Chen
P
P
Bhattacharya
W
W
Riha
K V
KV
Reddy
A T
AT
Howe
K A
KA
Stair
H
H
Iwamura
S R
SR
Friberg
T
T
Mukai