PASSIVELY MODE-LOCKED FIBER LASER

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PROBLEM TO BE SOLVED : To provide a passively mode-locked fiber laser capable of generating linearly chirped high power parabolic pulses. SOLUTION : The passively mode-locked fiber laser for generating short light pulses, comprises a laser resonator having intra-cavity dispersion and a rare-earth-doped gain medium that is provided in the laser resonator, has positive dispersion of intracavity dispersion and operates so as to generate a value of intra-cavity self-phase modulation larger than π. The band width of an intra-cavity light pulse changes during propagation in the laser resonator. COPYRIGHT : (C)2009, JPO&INPIT