Abstract
In recent years, generation and application of ultrashort pulses from colliding pulse mode-locked (CPM) ring dye lasers [1–3] have attracted much attention for the study of ultrafast phenomena in the femtosecond region. We found that both spectral and temporal characteristics of these pulses are not simple but are largely affected by self-phase modulation (SPM), strongly depending on the concentration of the absorber dye.KeywordsSaturable AbsorberUltrashort PulseNonlinear Refractive IndexBroad WingCorrelation TraceThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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