title: Frontiers in Ultrashort Pulse Generation: Pushing the Limits in Linear and Nonlinear Optics.
abstract: Optical pulses in the 5-femtosecond range are produced by a variety of methods. Although different in technical detail, each method relies on the same three key components: spectral broadening due to the nonlinear optical Kerr effect, dispersion control, and ultrabroadband amplification. The state of the art of ultrashort pulse generation is reviewed with a focus on direct laser oscillator schemes.
authors.affiliation: Institute of Quantum Electronics, Swiss Federal Institute of Technology, ETH Hönggerberg, HPT, CH-8093 Zürich, Switzerland.
authors.initials: G
authors.lastname: Steinmeyer
authors.initials: DH
authors.lastname: Sutter
authors.initials: L
authors.lastname: Gallmann
authors.initials: N
authors.lastname: Matuschek
authors.initials: U
authors.lastname: Keller