We demonstrate simultaneous femtosecond pulse generation at 1.55 and 1.07 μm using a passively mode-locked Er- and Yb-doped fiber laser whose two ring cavities share the same SWNT saturable absorber. Pulse widths as short as 270~290 fs were simultaneously obtained at both wavelengths.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering