title: High performance laser diode bars with aluminum-free active regions.
abstract: We present operating and lifetest data on 795 and 808 nm bars with aluminum-free active regions. Conductively cooled bars operate reliably at CW power outputs of 40 W, and have high efficiency, low beam divergence, and narrow spectra. Record CW powers of 115 W CW are demonstrated at 795 nm for 30% fill-factor bars mounted on microchannel coolers. We also review QCW performance and lifetime for higher fill-factor bars processed on identical epitaxial material.
authors.forename: M
authors.initials: M
authors.lastname: Jansen
authors.forename: P
authors.initials: P
authors.lastname: Bournes
authors.forename: P
authors.initials: P
authors.lastname: Corvini
authors.forename: F
authors.initials: F
authors.lastname: Fang
authors.forename: M
authors.initials: M
authors.lastname: Finander
authors.forename: M
authors.initials: M
authors.lastname: Hmelar
authors.forename: T
authors.initials: T
authors.lastname: Johnston
authors.forename: C
authors.initials: C
authors.lastname: Jordan
authors.forename: R
authors.initials: R
authors.lastname: Nabiev
authors.forename: J
authors.initials: J
authors.lastname: Nightingale
authors.forename: M
authors.initials: M
authors.lastname: Widman
authors.forename: H
authors.initials: H
authors.lastname: Asonen
authors.forename: J
authors.initials: J
authors.lastname: Aarik
authors.forename: A
authors.initials: A
authors.lastname: Salokatve
authors.forename: J
authors.initials: J
authors.lastname: Nappi
authors.forename: K
authors.initials: K
authors.lastname: Rakennus