Abstract

Operation of the most ultrashort pulse laser sources is based on the mode-locking. An ultrashort pulse is formed in the laser resonator when a fixed phase relationship is achieved between its longitudinal modes. A promising alternative to mode-locked laser sources can be 2R (Re-amplification and Re-shaping) optical regenerators [1]. It was demonstrated that 2R optical regenerators placed in cascade can lead to formation of pulses that remain unchanged between the input and the output of the paired regenerators [2]. To date, the generation of short pulses using this method has been experimentally demonstrated only in the telecommunications wavelength range [3]. In this contribution we present numerical and experimental results of the pulse generator based on Yb-doped fiber amplifier, operating at the wavelength of 1060 nm.

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