title: Experimental demonstration of frequency pulling in single-pass free-electron lasers.
abstract: Frequency pulling is a well-known phenomenon in standard laser physics, leading to a shift of the laser frequency when the cavity and maximum gain frequencies are detuned. In this letter we present the first experimental demonstration of frequency pulling in single-pass free-electron lasers. Measurements are performed using the single-pass free-electron laser installed on the Elettra storage ring.
authors.affiliation: 1Sincrotrone Trieste, SS 14 km 163.5, Basovizza, Ts, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Allaria
authors.forename: G
authors.initials: G
authors.lastname: De Ninno
authors.forename: C
authors.initials: C
authors.lastname: Spezzani