Longitudinal mode control in few-mode erbium-doped fiber lasers.
We report an approach to the control of the longitudinal mode structure in erbium-doped fiber lasers that uses saturable absorbers and the spatial hole-burning effect in the laser cavity. Two- and three-mode fiber lasers are successfully demonstrated, and the laser output properties are compared with theoretical calculations.
Kim
H S
HS
Kim
S K
SK
Kim
B Y
BY