title: High-power red, orange, and green Pr³⁺:LiYF₄ lasers.
abstract: Laser experiments with Pr(3+):LiYF4 under excitation with a frequency doubled optically pumped semiconductor laser emitting 5 W at 479 nm were performed at seven different laser wavelengths of 523, 546, 604, 607, 640, 698, and 720 nm. At all these wavelengths the output power exceeded 1 W. The best performance at 523 nm with an output power of 2.9 W at a slope efficiency of 72% and an optical-to-optical efficiency of 67% with respect to the incident pump power represents the highest efficiency ever reported for a praseodymium-doped laser material.
authors.forename: Philip Werner
authors.initials: PW
authors.lastname: Metz
authors.forename: Fabian
authors.initials: F
authors.lastname: Reichert
authors.forename: Francesca
authors.initials: F
authors.lastname: Moglia
authors.forename: Sebastian
authors.initials: S
authors.lastname: Müller
authors.forename: Daniel-Timo
authors.initials: DT
authors.lastname: Marzahl
authors.forename: Christian
authors.initials: C
authors.lastname: Kränkel
authors.forename: Günter
authors.initials: G
authors.lastname: Huber