简介:Abstract—A new architecture which is based on the chirped
pulse amplification scheme is proposed to increase the pulse
energy of the mode-locked fiber laser. The idea was applied to a
passively mode-locked laser using简介:Abstract—A new architecture which is based on the chirped
pulse amplification scheme is proposed to increase the pulse
energy of the mode-locked fiber laser. The idea was applied to a
passively mode-locked laser using an Ytterbium (Yb3+)-doped
double-clad silica fiber. Mode-locking was achieved by nonlinear
polarization evolution associated to frequency-shifted feedback
technique for self-starting. A compressor and a stretcher, based on
diffraction gratings, permitted us to manage the dispersion and to
reduce the pulse power in the fiber. The laser delivered chirped
pulses at 1050 nm with 11.8-nJ energy at a 9.3-MHz repetition rate
(110-mW average power) which were subsequently compressed to
196-fs duration.详细>