title: Characterization of perpendicular chirped phase volume grating pairs for laser pulse stretching.
abstract: We report the characterization of a new pulse stretcher that provides a linear and positive variation of the group delay as a function of the optical frequency. It consists of a perpendicular chirped-grating pair introduced by Tournois [Opt. Commun. 106, 253 (1994)] that allows 20-fs pulses to be stretched to 100 ps. The system is tested by short-pulse spectral interferometry. We designed and realized the chirped gratings by phase volume holographic recording in a highly efficient photopolymer.
authors.forename: B
authors.initials: B
authors.lastname: Loiseaux
authors.forename: A
authors.initials: A
authors.lastname: Delboulbé
authors.forename: J P
authors.initials: JP
authors.lastname: Huignard
authors.forename: P
authors.initials: P
authors.lastname: Tournois
authors.forename: G
authors.initials: G
authors.lastname: Cheriaux
authors.forename: F
authors.initials: F
authors.lastname: Salin