Stability mechanism of picosecond supercontinuum in YAG
Alexandr Špaček, Lukáš Indra, František Batysta, Petr Hříbek, Jonathan T. Green, Jakub Novák, Roman Antipenkov, Pavel Bakule, B. Rus
Abstract
Stable picosecond supercontinuum generated in long crystals is an excellent means of seeding broadband, high-energy CPA systems. The generated output energy and spectrum can be almost three times as stable as the pump for a wide range of input pulse parameters. In this work, we show this is an intrinsic property for crystals longer than the filament and for a range of input energy values. We present a description of the stability mechanism in both the visible and infrared regions together with experimental data that support the theoretical explanation.
Topics & Concepts
SupercontinuumOpticsPicosecondMaterials scienceProtein filamentRange (aeronautics)BroadbandSelf-phase modulationNonlinear opticsInfraredSeedingEnergy (signal processing)OptoelectronicsPhysicsLaserOptical fiberPhotonic-crystal fiberQuantum mechanicsComposite materialThermodynamicsLaser-Matter Interactions and ApplicationsAdvanced Fiber Laser TechnologiesPhotonic Crystal and Fiber Optics