title: Tapered lasers emitting at 650 nm with 1 W output power with nearly diffraction-limited beam quality.
abstract: High-brightness tapered lasers emitting around 650 nm were developed. Devices 2 mm long with a200-microm-long straight section, 1800-microm-long tapered section, and 4 degrees taper angle reached 1 W output power in CW operation with a nearly diffraction-limited beam quality.
authors.affiliation: Ferdinand-Braun-Institute für Höchstfrequenztechnik, Gustav-Kirchhoff-Strasse 4, D-12489 Berlin, Germany. pawel.adamiec@fbh-berlin.de
authors.forename: Pawel
authors.initials: P
authors.lastname: Adamiec
authors.forename: Bernd
authors.initials: B
authors.lastname: Sumpf
authors.forename: Ingo
authors.initials: I
authors.lastname: Rüdiger
authors.forename: Jörg
authors.initials: J
authors.lastname: Fricke
authors.forename: Karl-Heinz
authors.initials: KH
authors.lastname: Hasler
authors.forename: Peter
authors.initials: P
authors.lastname: Ressel
authors.forename: Hans
authors.initials: H
authors.lastname: Wenzel
authors.forename: Martin
authors.initials: M
authors.lastname: Zorn
authors.forename: Götz
authors.initials: G
authors.lastname: Erbert
authors.forename: Günther
authors.initials: G
authors.lastname: Tränkle