Abstract
Reliable Q-switched and mode-locked operation of Yb-doped fiber lasers is investigated by employing an acousto-optic modulator (AOM) in a linear cavity configuration. The widths and shapes of the Q-switched envelopes mainly depend on the external modulation frequency of the AOM and near symmetric Q-switched pulses can be generated. Within the Q-switched envelopes, harmonic mode-locked pulses with near 100% modulation depth at the 40 MHz repetition rate are experimentally observed.
Original language | English |
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Pages (from-to) | 441-446 |
Number of pages | 6 |
Journal | Laser Physics |
Volume | 22 |
Issue number | 2 |
DOIs | |
State | Published - 1 Feb 2012 |