title: Blue Pr(3+)-doped ZBLAN fiber upconversion laser.
abstract: We demonstrate blue laser emission from a direct semiconductor laser-diode-pumped Pr(3+)-doped upconversion fiber laser. This laser produced more than 1 mW of power at a wavelength of 492 nm from pump lasers operating at 830 and 1020 nm.
authors.forename: D M
authors.initials: DM
authors.lastname: Baney
authors.forename: G
authors.initials: G
authors.lastname: Rankin
authors.forename: K W
authors.initials: KW
authors.lastname: Chang