title: Broadband beamsplitter for high intensity laser applications in the infra-red spectral range.
abstract: We report on design, production and characterization of an extremely broadband multilayer beamsplitter, covering wavelength range from 0.67 - 2.6 µm. The group delay dispersion has small oscillations in the above mentioned working range. We used a new algorithm with floating constants allowing us to obtain a smooth and near constant GDD. The optical element based on the beamsplitter is used for dividing a low-energy super-octave spectrum into several sub-spectral regions which are later amplified and coherently combined.
authors.forename: Tatiana
authors.initials: T
authors.lastname: Amotchkina
authors.forename: Hanieh
authors.initials: H
authors.lastname: Fattahi
authors.forename: Yurij A
authors.initials: YA
authors.lastname: Pervak
authors.forename: Michael
authors.initials: M
authors.lastname: Trubetskov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Pervak