title: Tunable, continuous-wave Ti:sapphire channel waveguide lasers written by femtosecond and picosecond laser pulses.
abstract: Fabrication and cw lasing at 798.25 nm is reported for femtosecond (fs) and picosecond (ps) laser-inscribed channel waveguides in Ti:sapphire crystals. Lasing in channels written by fs (ps) pulses was obtained above a threshold of 84 mW (189 mW) with a maximum output power and a slope efficiency of 143 mW (45 mW) and 23.5% (7.1%), respectively. The emission wavelength was tuned over a 170 nm range by using a birefringent filter in an external cavity.
authors.affiliation: School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK. chr.grivas@gmail.com
authors.forename: Christos
authors.initials: C
authors.lastname: Grivas
authors.forename: Costantino
authors.initials: C
authors.lastname: Corbari
authors.forename: Gilberto
authors.initials: G
authors.lastname: Brambilla
authors.forename: Pavlos G
authors.initials: PG
authors.lastname: Lagoudakis