Soliton Shaping Mechanisms in Passively Mode-Locked Lasers and Negative Group Velocity Dispersion Using Refraction
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We have developed analyses of soliton shaping mechanisms in a colliding pulse passively mode-locked laser  and of the adjustable group velocity dispersion obtainable from pairs of prisms [2,3,4]. We find soliton mechanisms aid in generating pulses which are shorter by the order of a factor of two than otherwise obtainable and also provide improved stability of the laser against changes in net gain. The negative group velocity dispersion, which we show necessarily accompanies any angular dispersion, provides an experimental means of introducing adjustable low loss group velocity dispersion in the laser resonators. This is useful in examining these soliton shaping mechanisms.
KeywordsGroup Velocity Dispersion Laser Resonator Optic Letter Angular Dispersion Negative Dispersion
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