The dependence of the output characteristics of a regeneratively and harmonically FM mode-locked erbiumdoped fiber laser on intracavity dispersion have been investigated by changing the group velocity dispersion (GVD) of the fiber. It is shown that a stable pulse train can be obtained only when the GVD of the cavity is anomalous in the presence of self-phase modulation (SPM). The shortest pulse obtained was 2.0 ps at a repetition rate of 10 GHz.
|Number of pages||6|
|Journal||IEICE Transactions on Electronics|
|Publication status||Published - 1998|
- Erbium-doped fiber
- Fiber laser
- Optical pulse