Patent ID: 8824041

Claim:
A chirped pulse amplification (CPA) fiber laser device, comprising: a seed laser configured to produce input laser pulses at an initial repetition rate; a pulse stretcher configured to stretch the input laser pulses to produce stretched laser pulses; a pulse picker configured to modulate the stretched laser pulses to a modulated repetition rate in response to a repetition control signal; a pulse rate controller configured to produce the repetition control signal to control the pulse picker to modulate the stretched laser pulses; an optical power amplifier configured to amplify the stretched laser pulses to produce first amplified laser pulses; a pulse compressor configured to compress durations of the first amplified laser pulses to produce output laser pulses at the modulated repetition rate; a switchable dispersion compensator; and a pulse linearity controller configured to control the switchable dispersion compensator to compensate for non-linear dispersion in the output laser pulses in accordance to the modulated repetition rate.