A cw Pr3+: LiYF4 laser at 639 nm pumped by a high-power GaN laser diode (444 nm) is demonstrated. The highest laser power of 112 mW is achieved with an optical-optical conversion efficiency of 33.5%. Characteristics of this laser at elevated temperatures are also investigated for practical applications such as a laser projector.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics