title: Degenerate 1 GHz repetition rate femtosecond optical parametric oscillator.
abstract: We report a degenerate femtosecond optical parametric oscillator (OPO) that is synchronously pumped by a mode-locked Ti:sapphire laser at 1 GHz repetition rate. The OPO produces an 85 nm (10 THz) wide frequency comb centered at 1.6 μm. Stable long-term operation with >100 mW of average output power has been achieved.
authors.affiliation: Laboratory of Physical Chemistry, Department of Chemistry, University of Helsinki,, Helsinki, Finland. markku.vainio@helsinki.fi
authors.forename: Markku
authors.initials: M
authors.lastname: Vainio
authors.forename: Mikko
authors.initials: M
authors.lastname: Merimaa
authors.forename: Lauri
authors.initials: L
authors.lastname: Halonen
authors.forename: Konstantin
authors.initials: K
authors.lastname: Vodopyanov