| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1533085 | Optics Communications | 2016 | 4 Pages |
•A high-power blue diode laser was used as pump source with maximum output power of 7 W.•Watt-level diode-pumped Pr:YLF lasers at 523, 607, 640, 698 and 721 nm can be realized.•Laser beam qualities were measured with beam propagation factors of less than 1.8 for all these lasers.
We report a power scaled laser operation of diode-pumped Pr3+-doped LiYF4 crystal in single-end pumping geometry. Using a multi-mode InGaN diode laser, laser emissions at about 523.0, 604.1, 606.9, 639.4, 697.8 and 720.9 nm are achieved with maximum output power of 1.7, 0.6, 1.1, 2.3, 1.3 and 1 W, respectively. The corresponding slope efficiencies are found to be about 49%, 33%, 40%, 57%, 36% and 42%. Good laser beam qualities of these visible lasers are also found with measured beam propagation factors M2<1.8 for all of them.
