Equivalence between free-electron-laser oscillators and actively-mode-locked lasers: Detailed studies of temporal, spatiotemporal, and spectrotemporal dynamics

Journal Article · Thu Dec 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.063804· OSTI ID:22095694

Bruni, C.; Legrand, T.; Szwaj, C.; Bielawski, S.; Couprie, M. E. ^[1]

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1. Laboratoire de l'Accelerateur Lineaire, Universite Paris-Sud 11, Unite Mixte de Recherche No. 8607 associee au Centre National de la Recherche Scientifique, Batiment 200, Boite Postale 34, F-91898 Orsay Cedex (France)

We show experimentally and numerically that free-electron-laser (FEL) oscillators behave in a very similar way to conventional actively-mode-locked lasers. This stems from the similar structures of their underlying Haus equations. A comparative study of the temporal evolutions of the pulse train shapes and spatiotemporal regimes is performed on a Nd:YVO{sub 4} laser and a storage-ring free-electron laser. Furthermore, since direct observations of time-resolved pulse shapes and spectra are more accessible on free-electron lasers, the analogy also potentially enables one to investigate mode-locked laser dynamics using existing FEL facilities.

• OSTI ID: 22095694
• Journal Information: Physical Review. A, Vol. 84, Issue 6; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
47 OTHER INSTRUMENTATION
FREE ELECTRON LASERS
LASER RADIATION
MODE LOCKING
NEODYMIUM LASERS
OSCILLATORS
PULSES
STORAGE RINGS
TIME RESOLUTION