title: Hybrid master oscillator power amplifier high-power narrow-linewidth nanosecond laser source at 257 nm.
abstract: We report on a high-power narrow-linewidth pulsed laser source emitting at a wavelength of 257 nm. The system is based on a master oscillator power amplifier architecture, with Yb-doped fiber preamplifiers, a Yb:YAG single crystal fiber power amplifier used to overcome the Brillouin limitation in glass fiber and nonlinear frequency conversion stages. This particularly versatile architecture allows the generation of Fourier transform-limited 15 ns pulses at 1030 nm with 22 W of average power and a diffraction-limited beam (M(2)<1.1). At a repetition rate of 30 kHz, 106 μJ UV pulses are generated corresponding to an average power of 3.2 W.
authors.affiliation: Laboratoire Charles Fabry, Institut d'Optique, CNRS, Univ Paris Sud, Palaiseau, France. xavier.delen@institutoptique.fr
authors.forename: Xavier
authors.initials: X
authors.lastname: Délen
authors.forename: Loïc
authors.initials: L
authors.lastname: Deyra
authors.forename: Aurélien
authors.initials: A
authors.lastname: Benoit
authors.forename: Marc
authors.initials: M
authors.lastname: Hanna
authors.forename: François
authors.initials: F
authors.lastname: Balembois
authors.forename: Benjamin
authors.initials: B
authors.lastname: Cocquelin
authors.forename: Damien
authors.initials: D
authors.lastname: Sangla
authors.forename: François
authors.initials: F
authors.lastname: Salin
authors.forename: Julien
authors.initials: J
authors.lastname: Didierjean
authors.forename: Patrick
authors.initials: P
authors.lastname: Georges