Mode-locked femtosecond all-normal all-PM Yb-doped fiber laser at 1060 nm

Abstract

We report an all-normal-dispersion, all-fibre, all-PM, laser operating at a central wavelength of 1060nm. The laser is mode-locked using a nonlinear amplifying loop mirror and generates linearly polarised pulses that can be compressed to 360fs. The laser is based on our earlier scheme operating at 1030nm [1] and we discuss the similarities and differences between the two configurations. We also present amplification up to an output power of 1W using a commercially built amplifier and show through numerical methods that this pulse may be recompressible to 1.65ps.