Collinear type II second-harmonic-generation frequency-resolved optical gating for the characterization of sub-10-fs optical pulses.
For the first time to our knowledge, we demonstrate a collinear frequency-resolved optical gating (FROG) technique that is suitable for the characterization of sub-10-fs pulses. This FROG variant does not suffer from geometrical blurring effects, and a temporal resolution of 1 fs can be achieved without the need for additional aperturing. The apparatus is suitable for subnanojoule pulse energies. We apply this technique for the full characterization of pulses from a Kerr-lens mode-locked Ti:sapphire laser.
Gallmann
L
L
Steinmeyer
G
G
Sutter
D H
DH
Matuschek
N
N
Keller
U
U