Abstract
Abstract In this work femtosecond passively mode-locked environmentally stable Ytterbium fiber oscillator generating pulses with duration of 380 fs is presented. Short pulse duration and smooth spectrum were obtained from the oscillator using chirped fiber Bragg grating with very low anomalous chromatic dispersion (0.15 ps2) and semiconductor saturable absorber mirror. Linearly chirped parabolic pulses were produced after amplification of the oscillator pulses in low concentration ytterbium doped fiber amplifier. Transform limited duration of the generated parabolic pulses was 110 fs.
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