Self-starting stretched-pulse fiber laser mode locked and stabilized with slow and fast semiconductor saturable absorbers.
A self-starting stretched-pulse mode-locked erbium-doped fiber laser that uses fast and slow semiconductor saturable absorbers is described. By using two absorbers, we obtained reliable operation at a fundamental repetition rate with 250 pJ of pulse energy without multiple-pulse breakup. External chirp compensation was used to compress the highly chirped pulses to durations of 135 fs.
M
M
Guina
N
N
Xiang
A
A
Vainionpää
O G
OG
Okhotnikov
T
T
Sajavaara
J
J
Keinonen