New generation regimes in mode-locked fibre lasers with controllable radiation intensity distribution along the cavity

摘要

This work reports the results of research into mode-locked fibre lasers with non-trivial and controllable distribution of the radiation intensity along the resonant cavity. It is shown that local minimisation of non-linear optical effects and chromatic dispersion enables stable mode locking in ultra-long cavities and allows higher output pulse energies. Different configurations of fibre laser cavities, which may be promising for achievement of uniquely high pulse energies are discussed and analysed.