title: Tunable high-power narrow-spectrum external-cavity diode laser based on tapered amplifier at 668 nm.
abstract: A 668 nm tunable high-power narrow-spectrum diode laser system based on a tapered semiconductor optical amplifier in external cavity is demonstrated. The laser system is tunable from 659to675 nm. As high as 1.38 W output power is obtained at 668.35 nm. The emission spectral bandwidth is less than 0.07 nm throughout the tuning range, and the beam quality factor M(2) is 2.0 with the output power of 1.27 W.
authors.affiliation: DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Frederiksborgvej 399,P.O. Box 49, DK-4000 Roskilde, Denmark. mchi@risoe.dtu.dk
authors.forename: Mingjun
authors.initials: M
authors.lastname: Chi
authors.forename: G
authors.initials: G
authors.lastname: Erbert
authors.forename: B
authors.initials: B
authors.lastname: Sumpf
authors.forename: Paul Michael
authors.initials: PM
authors.lastname: Petersen